View Compilation Error

0_0_14542208_25458.cpp: In function 'int main()':
0_0_14542208_25458.cpp:87:21: error: 'ans' was not declared in this scope
   printf("%I64d\n", ans % MOD);
                     ^
0_0_14542208_25458.cpp: At global scope:
0_0_14542208_25458.cpp:89:2: error: expected unqualified-id before 'return'
  return 0;
  ^
0_0_14542208_25458.cpp:90:1: error: expected declaration before '}' token
 }
 ^