#include<stdio.h>
#include<ctype.h>
#include<string.h>
#include<stdlib.h>
int isvalidInteger(char str[]){
    int i = 0;
    if(str[0] == '_')
    i=1;
    for(; str[i] !='\0';i++){
        if(!isdigit(str[i]))
        return 0;
    }
    return 1;
}
int main(){
    char aStr[20], bStr[20];
    if (!isvalidInteger(aStr)|| !isvalidInteger(bStr)){
        printf("invalid input\n");
        return 0;
    }
    
    1 = atoi(aStr);
    2 = atoi(bStr);
    int product =a*b;
    int quotient=a/b;
    printf("%d\n",product);
    printf("%d\n",quotient);
    return 0;
}