#include <stdio.h>
#include <math.h>
int main() {
char operator;
long long result, operand;
if (scanf("%llx", &result) != 1) {
printf("Invalid input.\n");
return 1;
}
while (1) {
operator = getchar();
if (operator == '=') {
break;
}
if (scanf("%llx", &operand) != 1) {
printf("Invalid input.\n");
return 1;
}
switch (operator) {
case '+':
result += operand;
break;
case '-':
result -= operand;
break;
case '*':
result *= operand;
break;
case '/':
if (operand == 0) {
printf("You can't divide with zero!\n");
return 1;
}
result /= operand;
break;
case '^':
result = pow(result, operand);
break;
default:
printf("Invalid operator: %c\n", operator);
return 1;
}
}
long long expected;
if (scanf("%llx", &expected) != 1) {
printf("Invalid input.\n");
return 1;
}
if (result == expected) {
printf("Correct!\n");
} else {
printf("BaBaBa, It's wrong.\n%llx\n", result);
}
return 0;
}