/in/foo.cc: In function 'int main()':
/in/foo.cc:162:33: warning: format '%d' expects argument of type 'int', but argument 2 has type 'long long int' [-Wformat=]
     printf("%d\n",(Pnum+mod)%mod);
                                 ^
/in/foo.cc:143:10: warning: unused variable 'k' [-Wunused-variable]
  int i,j,k,o,p,l;
          ^
/in/foo.cc:143:12: warning: unused variable 'o' [-Wunused-variable]
  int i,j,k,o,p,l;
            ^
/in/foo.cc:143:14: warning: unused variable 'p' [-Wunused-variable]
  int i,j,k,o,p,l;
              ^
/in/foo.cc:143:16: warning: unused variable 'l' [-Wunused-variable]
  int i,j,k,o,p,l;
                ^