/in/foo.cc: In function 'int main()':
/in/foo.cc:7:6: error: 'i' was not declared in this scope
  for(i=1,i<n-1;i++)
      ^
/in/foo.cc:7:19: error: expected ';' before ')' token
  for(i=1,i<n-1;i++)
                   ^
/in/foo.cc:9:6: error: 'a' was not declared in this scope
   if(a%m==0)
      ^
/in/foo.cc:9:8: error: 'm' was not declared in this scope
   if(a%m==0)
        ^