View Compilation Error

0_0_18634188_13660.cpp: In function 'int main()':
0_0_18634188_13660.cpp:9:3: error: '_int64' was not declared in this scope
   _int64 a,b,c,s=1;
   ^
0_0_18634188_13660.cpp:10:28: error: 'a' was not declared in this scope
   scanf("%I64d%I64d%I64d",&a,&b,&c);
                            ^
0_0_18634188_13660.cpp:10:31: error: 'b' was not declared in this scope
   scanf("%I64d%I64d%I64d",&a,&b,&c);
                               ^
0_0_18634188_13660.cpp:10:34: error: 'c' was not declared in this scope
   scanf("%I64d%I64d%I64d",&a,&b,&c);
                                  ^
0_0_18634188_13660.cpp:13:4: error: 's' was not declared in this scope
    s=(a*s)%c;
    ^
0_0_18634188_13660.cpp:15:20: error: 's' was not declared in this scope
   printf("%I64d\n",s);
                    ^