#include<stdio.h>
int main(){
    int a,b;
    char c1, c2;
    scanf(" %c", &c1);
    if (!isdigit(c1)) {
        printf("Invalid input\n");
        return 0;
    }
    ungetc(c1, stdin);
    scanf(" %c", &c2);
    if (b == 0){
        printf("Division by zero is not allowed.\n");
    }
    printf("%d\n", a * b);
    if (b != 0) {
        printf("%d\n", a / b);
    }
    return 0;
}