/in/foo.cc:9:2: error: stray '\357' in program
  if（Y mod (X-1)!=0） cout<<"Impossible"<<endl;
  ^
/in/foo.cc:9:2: error: stray '\274' in program
/in/foo.cc:9:2: error: stray '\210' in program
/in/foo.cc:9:2: error: stray '\357' in program
/in/foo.cc:9:2: error: stray '\274' in program
/in/foo.cc:9:2: error: stray '\211' in program
/in/foo.cc: In function 'int main()':
/in/foo.cc:9:7: error: expected '(' before 'Y'
  if（Y mod (X-1)!=0） cout<<"Impossible"<<endl;
       ^
/in/foo.cc:10:2: error: 'else' without a previous 'if'
  else if {
  ^
/in/foo.cc:10:10: error: expected '(' before '{' token
  else if {
          ^
/in/foo.cc:5:15: warning: unused variable 'n' [-Wunused-variable]
  int X,Y,A0,m,n;
               ^
/in/foo.cc:6:6: warning: unused variable 'k' [-Wunused-variable]
  int k=1;
      ^
/in/foo.cc:19:1: error: expected '}' at end of input
 }
 ^