foo.cpp:7:1: error: stray '\240' in program
  
 ^
foo.cpp:43:1: error: stray '\240' in program
  
 ^
foo.cpp:45:1: error: stray '\240' in program
  
 ^
foo.cpp:55:1: error: stray '\240' in program
     LL ans = 1;
 ^
foo.cpp:55:1: error: stray '\240' in program
foo.cpp:55:1: error: stray '\240' in program
foo.cpp:55:1: error: stray '\240' in program
foo.cpp:56:1: error: stray '\240' in program
     //LL ans = 0;
 ^
foo.cpp:56:1: error: stray '\240' in program
foo.cpp:56:1: error: stray '\240' in program
foo.cpp:56:1: error: stray '\240' in program
foo.cpp:57:1: error: stray '\240' in program
     for (LL t = a; x; x/=2, t=(t*t)%m) 
 ^
foo.cpp:57:1: error: stray '\240' in program
foo.cpp:57:1: error: stray '\240' in program
foo.cpp:57:1: error: stray '\240' in program
foo.cpp:58:1: error: stray '\240' in program
     //for (LL t = x; x; x/=2, t=(t*t)%m) 
 ^
foo.cpp:58:1: error: stray '\240' in program
foo.cpp:58:1: error: stray '\240' in program
foo.cpp:58:1: error: stray '\240' in program
foo.cpp:59:1: error: stray '\240' in program
         if (x&1) ans = t*ans%m;
 ^
foo.cpp:59:1: error: stray '\240' in program
foo.cpp:59:1: error: stray '\240' in program
foo.cpp:59:1: error: stray '\240' in program
foo.cpp:59:1: error: stray '\240' in program
foo.cpp:59:1: error: stray '\240' in program
foo.cpp:59:1: error: stray '\240' in program
foo.cpp:59:1: error: stray '\240' in program
foo.cpp:60:1: error: stray '\240' in program
     return ans%m;
 ^
foo.cpp:60:1: error: stray '\240' in program
foo.cpp:60:1: error: stray '\240' in program
foo.cpp:60:1: error: stray '\240' in program
foo.cpp:63:1: error: stray '\240' in program
     if (b == 0) {
 ^
foo.cpp:63:1: error: stray '\240' in program
foo.cpp:63:1: error: stray '\240' in program
foo.cpp:63:1: error: stray '\240' in program
foo.cpp:64:1: error: stray '\240' in program
         x= 1; y = 0; d = 1; return;
 ^
foo.cpp:64:1: error: stray '\240' in program
foo.cpp:64:1: error: stray '\240' in program
foo.cpp:64:1: error: stray '\240' in program
foo.cpp:64:1: error: stray '\240' in program
foo.cpp:64:1: error: stray '\240' in program
foo.cpp:64:1: error: stray '\240' in program
foo.cpp:64:1: error: stray '\240' in program
foo.cpp:65:1: error: stray '\240' in program
     }
 ^
foo.cpp:65:1: error: stray '\240' in program
foo.cpp:65:1: error: stray '\240' in program
foo.cpp:65:1: error: stray '\240' in program
foo.cpp:66:1: error: stray '\240' in program
     exgcd(b, a%b, d, y, x);
 ^
foo.cpp:66:1: error: stray '\240' in program
foo.cpp:66:1: error: stray '\240' in program
foo.cpp:66:1: error: stray '\240' in program
foo.cpp:67:1: error: stray '\240' in program
     y -= x*(a/b);
 ^
foo.cpp:67:1: error: stray '\240' in program
foo.cpp:67:1: error: stray '\240' in program
foo.cpp:67:1: error: stray '\240' in program
foo.cpp:70:1: error: stray '\240' in program
     LL d, x, y;
 ^
foo.cpp:70:1: error: stray '\240' in program
foo.cpp:70:1: error: stray '\240' in program
foo.cpp:70:1: error: stray '\240' in program
foo.cpp:71:1: error: stray '\240' in program
     return pow(a, p-2, p);
 ^
foo.cpp:71:1: error: stray '\240' in program
foo.cpp:71:1: error: stray '\240' in program
foo.cpp:71:1: error: stray '\240' in program
foo.cpp:74:1: error: stray '\240' in program
     for (int i = 2; i < m; i++) {
 ^
foo.cpp:74:1: error: stray '\240' in program
foo.cpp:74:1: error: stray '\240' in program
foo.cpp:74:1: error: stray '\240' in program
foo.cpp:75:1: error: stray '\240' in program
         bool flag = true;
 ^
foo.cpp:75:1: error: stray '\240' in program
foo.cpp:75:1: error: stray '\240' in program
foo.cpp:75:1: error: stray '\240' in program
foo.cpp:75:1: error: stray '\240' in program
foo.cpp:75:1: error: stray '\240' in program
foo.cpp:75:1: error: stray '\240' in program
foo.cpp:75:1: error: stray '\240' in program
foo.cpp:76:1: error: stray '\240' in program
         for (int j = 1; j<m-1&&flag; j++) 
 ^
foo.cpp:76:1: error: stray '\240' in program
foo.cpp:76:1: err