//Validation (A × B × C)

#include <iostream>
#include "testlib.h"

using namespace std;
using ll=long long;

int main(){
    int Value_max=1000000000;

    registerValidation();

    int A=inf.readInt(1,Value_max,"A"); inf.readSpace();
    int B=inf.readInt(1,Value_max,"B"); inf.readSpace();
    int C=inf.readInt(1,Value_max,"C"); inf.readEoln();

    int K=inf.readInt(1,Value_max,"K"); inf.readEoln();

    inf.readEof();
    return 0;
}