/in/foo.cc:7:1: error: extended character   is not valid in an identifier
    7 |     int d[10000];
      | ^
/in/foo.cc:7:3: error: extended character   is not valid in an identifier
    7 |     int d[10000];
      |   ^
/in/foo.cc:8:1: error: extended character   is not valid in an identifier
    8 |     int len=0;
      | ^
/in/foo.cc:8:3: error: extended character   is not valid in an identifier
    8 |     int len=0;
      |   ^
/in/foo.cc:9:1: error: extended character   is not valid in an identifier
    9 |     BN()
      | ^
/in/foo.cc:9:3: error: extended character   is not valid in an identifier
    9 |     BN()
      |   ^
/in/foo.cc:10:1: error: extended character   is not valid in an identifier
   10 |     {
      | ^
/in/foo.cc:10:3: error: extended character   is not valid in an identifier
   10 |     {
      |   ^
/in/foo.cc:11:1: error: extended character   is not valid in an identifier
   11 |         memset(d,0,sizeof(d));
      | ^
/in/foo.cc:11:3: error: extended character   is not valid in an identifier
   11 |         memset(d,0,sizeof(d));
      |   ^
/in/foo.cc:11:5: error: extended character   is not valid in an identifier
   11 |         memset(d,0,sizeof(d));
      |     ^
/in/foo.cc:11:7: error: extended character   is not valid in an identifier
   11 |         memset(d,0,sizeof(d));
      |       ^
/in/foo.cc:12:1: error: extended character   is not valid in an identifier
   12 |         len=0;
      | ^
/in/foo.cc:12:3: error: extended character   is not valid in an identifier
   12 |         len=0;
      |   ^
/in/foo.cc:12:5: error: extended character   is not valid in an identifier
   12 |         len=0;
      |     ^
/in/foo.cc:12:7: error: extended character   is not valid in an identifier
   12 |         len=0;
      |       ^
/in/foo.cc:13:1: error: extended character   is not valid in an identifier
   13 |     }
      | ^
/in/foo.cc:13:3: error: extended character   is not valid in an identifier
   13 |     }
      |   ^
/in/foo.cc:18:1: error: extended character   is not valid in an identifier
   18 |     BN BIGN;
      | ^
/in/foo.cc:18:3: error: extended character   is not valid in an identifier
   18 |     BN BIGN;
      |   ^
/in/foo.cc:19:1: error: extended character   is not valid in an identifier
   19 |     BIGN.len = strlen(s);
      | ^
/in/foo.cc:19:3: error: extended character   is not valid in an identifier
   19 |     BIGN.len = strlen(s);
      |   ^
/in/foo.cc:20:1: error: extended character   is not valid in an identifier
   20 |     for(int i=0;i<BIGN.len;i++)
      | ^
/in/foo.cc:20:3: error: extended character   is not valid in an identifier
   20 |     for(int i=0;i<BIGN.len;i++)
      |   ^
/in/foo.cc:21:1: error: extended character   is not valid in an identifier
   21 |     {
      | ^
/in/foo.cc:21:3: error: extended character   is not valid in an identifier
   21 |     {
      |   ^
/in/foo.cc:22:1: error: extended character   is not valid in an identifier
   22 |         BIGN.d[i]=s[BIGN.len-i-1]-'0';
      | ^
/in/foo.cc:22:3: error: extended character   is not valid in an identifier
   22 |         BIGN.d[i]=s[BIGN.len-i-1]-'0';
      |   ^
/in/foo.cc:22:5: error: extended character   is not valid in an identifier
   22 |         BIGN.d[i]=s[BIGN.len-i-1]-'0';
      |     ^
/in/foo.cc:22:7: error: extended character   is not valid in an identifier
   22 |         BIGN.d[i]=s[BIGN.len-i-1]-'0';
      |       ^
/in/foo.cc:23:1: error: extended character   is not valid in an identifier
   23 |     }
      | ^
/in/foo.cc:23:3: error: extended character   is not valid in an identifier
   23 |     }
      |   ^
/in/foo.cc:24:1: error: extended character   is not valid in an identifier
   24 |     //cout<<BIGN.len<<endl;
      | ^
/in/foo.cc:24:3: error: extended character   is not valid in an identifier
   24 |     //cout<<BIGN.len<<endl;
      |   ^
/in/foo.cc:25:1: error: extended character   is not valid in an identifier
   25 |     return BIGN;
      | ^
/in/foo.cc:25:3: error: extended character   is not valid in an identifier
   25 |     return BIGN;
      |   ^
/in/foo.cc:30:1: error: extended character   is not valid in an identifier
   30 |     BN c;
      | ^
/in/foo.cc:30:3: error: extended character   is not valid in an identifier
   30 |     BN c;
      |   ^
/in/foo.cc:31:1: error: extended character   is not valid in an identifier
   31 |     long long carry=0;
      | ^
/in/foo.cc:31:3: error: extended character   is not valid in an identifier
   31 |     long long carry=0;
      |   ^
/in/foo.cc:32:1: error: extended character   is not valid in an identifier
   32 |     long long product=0;
      | ^
/in/foo.cc:32:3: error: extended character   is not valid in an identifier
   32 |     long long product=0;
      |   ^
/in/foo.cc:33:1: error: extended character   is not valid in an identifier
   33 |     for(int i=0;i<x.len;i++)
      | ^
/in/foo.cc:33:3: error: extended character   is not valid in an identifier
   33 |     for(int i=0;i<x.len;i++)
      |   ^
/in/foo.cc:34:1: error: extended character   is not valid in an identifier
   34 |     {
      | ^
/in/foo.cc:34:3: error: extended character   is not valid in an identifier
   34 |     {
      |   ^
/in/foo.cc:35:1: error: extended character   is not valid in an identifier
   35 |         product=x.d[i]*n+carry;
      | ^
/in/foo.cc:35:3: error: extended character   is not valid in an identifier
   35 |         product=x.d[i]*n+carry;
      |   ^
/in/foo.cc:35:5: error: extended character   is not valid in an identifier
   35 |         product=x.d[i]*n+carry;
      |     ^
/in/foo.cc:35:7: error: extended character   is not valid in an identifier
   35 |         product=x.d[i]*n+carry;
      |       ^
/in/foo.cc:36:1: error: extended character   is not valid in an identifier
   36 |         c.d[c.len++]= product%10;
      | ^
/in/foo.cc:36:3: error: extended character   is not valid in an identifier
   36 |         c.d[c.len++]= product%10;
      |   ^
/in/foo.cc:36:5: error: extended character   is not valid in an identifier
   36 |         c.d[c.len++]= product%10;
      |     ^
/in/foo.cc:36:7: error: extended character   is not valid in an identifier
   36 |         c.d[c.len++]= product%10;
      |       ^
/in/foo.cc:37:1: error: extended character   is not valid in an identifier
   37 |         carry=product/10;
      | ^
/in/foo.cc:37:3: error: extended character   is not valid in an identifier
   37 |         carry=product/10;
      |   ^
/in/foo.cc:37:5: error: extended character   is not valid in an identifier
   37 |         carry=product/10;
      |     ^
/in/foo.cc:37:7: error: extended character   is not valid in an identifier
   37 |         carry=product/10;
      |       ^
/in/foo.cc:38:1: error: extended character   is not valid in an identifier
   38 |     }
      | ^
/in/foo.cc:38:3: error: extended character   is not valid in an identifier
   38 |     }
      |   ^
/in/foo.cc:39:1: error: extended character   is not valid in an identifier
   39 |     while(carry)
      | ^
/in/foo.cc:39:3: error: extended character   is not valid in an identifier
   39 |     while(carry)
      |   ^
/in/foo.cc:40:1: error: extended character   is not valid in an identifier
   40 |     {
      | ^
/in/foo.cc:40:3: error: extended character   is not valid in an identifier
   40 |     {
      |   ^
/in/foo.cc:41:1: error: extended character   is not valid in an identifier
   41 |         c.d[c.len++]=carry %10;
      | ^
/in/foo.cc:41:3: error: extended character   is not valid in an identifier
   41 |         c.d[c.len++]=carry %10;
      |   ^
/in/foo.cc:41:5: error: extended character   is not valid in an identifier
   41 |         c.d[c.len++]=carry %10;
      |     ^
/in/foo.cc:41:7: error: extended character   is not valid in an identifier
   41 |         c.d[c.len++]=carry %10;
      |       ^
/in/foo.cc:42:1: error: extended character