/in/foo.cc:8:1: error: stray '\302' in program
     cin >> str1;
 ^
/in/foo.cc:8:2: error: stray '\240' in program
     cin >> str1;
  ^
/in/foo.cc:8:3: error: stray '\302' in program
     cin >> str1;
   ^
/in/foo.cc:8:4: error: stray '\240' in program
     cin >> str1;
    ^
/in/foo.cc:8:5: error: stray '\302' in program
     cin >> str1;
     ^
/in/foo.cc:8:6: error: stray '\240' in program
     cin >> str1;
      ^
/in/foo.cc:9:1: error: stray '\302' in program
     cin >> str2;
 ^
/in/foo.cc:9:2: error: stray '\240' in program
     cin >> str2;
  ^
/in/foo.cc:9:3: error: stray '\302' in program
     cin >> str2;
   ^
/in/foo.cc:9:4: error: stray '\240' in program
     cin >> str2;
    ^
/in/foo.cc:9:5: error: stray '\302' in program
     cin >> str2;
     ^
/in/foo.cc:9:6: error: stray '\240' in program
     cin >> str2;
      ^
/in/foo.cc:10:1: error: stray '\302' in program
     len1 = int(str1.size()), len2 = int(str2.size());
 ^
/in/foo.cc:10:2: error: stray '\240' in program
     len1 = int(str1.size()), len2 = int(str2.size());
  ^
/in/foo.cc:10:3: error: stray '\302' in program
     len1 = int(str1.size()), len2 = int(str2.size());
   ^
/in/foo.cc:10:4: error: stray '\240' in program
     len1 = int(str1.size()), len2 = int(str2.size());
    ^
/in/foo.cc:10:5: error: stray '\302' in program
     len1 = int(str1.size()), len2 = int(str2.size());
     ^
/in/foo.cc:10:6: error: stray '\240' in program
     len1 = int(str1.size()), len2 = int(str2.size());
      ^
/in/foo.cc:11:1: error: stray '\302' in program
     for(int i = 0; i < len1; i ++){
 ^
/in/foo.cc:11:2: error: stray '\240' in program
     for(int i = 0; i < len1; i ++){
  ^
/in/foo.cc:11:3: error: stray '\302' in program
     for(int i = 0; i < len1; i ++){
   ^
/in/foo.cc:11:4: error: stray '\240' in program
     for(int i = 0; i < len1; i ++){
    ^
/in/foo.cc:11:5: error: stray '\302' in program
     for(int i = 0; i < len1; i ++){
     ^
/in/foo.cc:11:6: error: stray '\240' in program
     for(int i = 0; i < len1; i ++){
      ^
/in/foo.cc:12:1: error: stray '\302' in program
         a[len1-i] = str1[i] - '0';
 ^
/in/foo.cc:12:2: error: stray '\240' in program
         a[len1-i] = str1[i] - '0';
  ^
/in/foo.cc:12:3: error: stray '\302' in program
         a[len1-i] = str1[i] - '0';
   ^
/in/foo.cc:12:4: error: stray '\240' in program
         a[len1-i] = str1[i] - '0';
    ^
/in/foo.cc:12:5: error: stray '\302' in program
         a[len1-i] = str1[i] - '0';
     ^
/in/foo.cc:12:6: error: stray '\240' in program
         a[len1-i] = str1[i] - '0';
      ^
/in/foo.cc:12:7: error: stray '\302' in program
         a[len1-i] = str1[i] - '0';
       ^
/in/foo.cc:12:8: error: stray '\240' in program
         a[len1-i] = str1[i] - '0';
        ^
/in/foo.cc:12:9: error: stray '\302' in program
         a[len1-i] = str1[i] - '0';
         ^
/in/foo.cc:12:10: error: stray '\240' in program
         a[len1-i] = str1[i] - '0';
          ^
/in/foo.cc:12:11: error: stray '\302' in program
         a[len1-i] = str1[i] - '0';
           ^
/in/foo.cc:12:12: error: stray '\240' in program
         a[len1-i] = str1[i] - '0';
            ^
/in/foo.cc:12:13: error: stray '\302' in program
         a[len1-i] = str1[i] - '0';
             ^
/in/foo.cc:12:14: error: stray '\240' in program
         a[len1-i] = str1[i] - '0';
              ^
/in/foo.cc:13:1: error: stray '\302' in program
     }
 ^
/in/foo.cc:13:2: error: stray '\240' in program
     }
  ^
/in/foo.cc:13:3: error: stray '\302' in program
     }
   ^
/in/foo.cc:13:4: error: stray '\240' in program
     }
    ^
/in/foo.cc:13:5: error: stray '\302' in program
     }
     ^
/in/foo.cc:13:6: error: stray '\240' in program
     }
      ^
/in/foo.cc:14:1: error: stray '\302' in program
     for(int i = 0; i < len2; i ++){
 ^
/in/foo.cc:14:2: error: stray '\240' in program
     for(int i = 0; i < len2; i ++){
  ^
/in/foo.cc:14:3: error: stray '\302' in program
     for(int i = 0; i < len2; i ++){
   ^
/in/foo.cc:14:4: error: stray '\240' in program
     for(int i = 0; i < len2; i ++){
    ^
/in/foo.cc:14:5: error: stray '\302' in program
     for(int i = 0; i < len2; i ++){
     ^
/in/foo.cc:14:6: error: stray '\240' in program
     for(int i = 0; i < len2; i ++){
      ^
/in/foo.cc:15:1: error: stray '\302' in program
         b[len2-i] = str2[i] - '0';
 ^
/in/foo.cc:15:2: error: stray '\240' in program
         b[len2-i] = str2[i] - '0';
  ^
/in/foo.cc:15:3: error: stray '\302' in program
         b[len2-i] = str2[i] - '0';
   ^
/in/foo.cc:15:4: error: stray '\240' in program
         b[len2-i] = str2[i] - '0';
    ^
/in/foo.cc:15:5: error: stray '\302' in program
         b[len2-i] = str2[i] - '0';
     ^
/in/foo.cc:15:6: error: stray '\240' in program
         b[len2-i] = str2[i] - '0';
      ^
/in/foo.cc:15:7: error: stray '\302' in program
         b[len2-i] = str2[i] - '0';
       ^
/in/foo.cc:15:8: error: stray '\240' in program
         b[len2-i] = str2[i] - '0';
        ^
/in/foo.cc:15:9: error: stray '\302' in program
         b[len2-i] = str2[i] - '0';
         ^
/in/foo.cc:15:10: error: stray '\240' in program
         b[len2-i] = str2[i] - '0';
          ^
/in/foo.cc:15:11: error: stray '\302' in program
         b[len2-i] = str2[i] - '0';
           ^
/in/foo.cc:15:12: error: stray '\240' in program
         b[len2-i] = str2[i] - '0';
            ^
/in/foo.cc:15:13: error: stray '\302' in program
         b[len2-i] = str2[i] - '0';
             ^
/in/foo.cc:15:14: error: stray '\240' in program
         b[len2-i] = str2[i] - '0';
              ^
/in/foo.cc:16:1: error: stray '\302' in program
     }
 ^
/in/foo.cc:16:2: error: stray '\240' in program
     }
  ^
/in/foo.cc:16:3: error: stray '\302' in program
     }
   ^
/in/foo.cc:16:4: error: stray '\240' in program
     }
    ^
/in/foo.cc:16:5: error: stray '\302' in program
     }
     ^
/in/foo.cc:16:6: error: stray '\240' in program
     }
      ^
/in/foo.cc:17:1: error: stray '\302' in program
     for(int i = 1; i <= len1; i ++){
 ^
/in/foo.cc:17:2: error: stray '\240' in program
     for(int i = 1; i <= len1; i ++){
  ^
/in/foo.cc:17:3: error: stray '\302' in program
     for(int i = 1; i <= len1; i ++){
   ^
/in/foo.cc:17:4: error: stray '\240' in program
     for(int i = 1; i <= len1; i ++){
    ^
/in/foo.cc:17:5: error: stray '\302' in program
     for(int i = 1; i <= len1; i ++){
     ^
/in/foo.cc:17:6: error: stray '\240' in program
     for(int i = 1; i <= len1; i ++){
      ^
/in/foo.cc:18:1: error: stray '\302' in program
         x = 0;
 ^
/in/foo.cc:18:2: error: stray '\240' in program
         x = 0;
  ^
/in/foo.cc:18:3: error: stray '\302' in program
         x = 0;
   ^
/in/foo.cc:18:4: error: stray '\240' in program
         x = 0;
    ^
/in/foo.cc:18:5: error: stray '\302' in program
         x = 0;
     ^
/in/foo.cc:18:6: error: stray '\240' in program
         x = 0;
      ^
/in/foo.cc:18:7: error: stray '\302' in program
         x = 0;
       ^
/in/foo.cc:18:8: error: stray '\240' in program
         x = 0;
        ^
/in/foo.cc:18:9: error: stray '\302' in program
         x = 0;
         ^
/in/foo.cc:18:10: error: stray '\240' in program
         x = 0;
          ^
/in/foo.cc:18:11: error: stray '\302' in program
         x = 0;
           ^
/in/foo.cc:18:12: error: stray '\240' in program
         x = 0;
            ^
/in/foo.cc:18:13: error: stray '\302' in program
         x = 0;
             ^
/in/foo.cc:18:14: error: stray '\240' in program
         x = 0;
              ^
/in/foo.cc:19:1: error: stray '\302' in program
         for(int j = 1; j <= len2; j ++){
 ^
/in/foo.cc:19:2: error: stray '\240' in pro