#include <iostream>
// this function computes the larger of two ints

// prototype declarations
int max(int, int);

int main(void)
{
    int a, b, c, d;

    cout << "Enter a, b, c, d: ";
    cin >> a >> b >> c >> d;

    cout << "The largest value is " << max(max(a,b), max(c,d)) << endl;
}

int max(int m1, int m2)
{
    int larger;

    cout << "max is called with arguments " << m1 << " " << m2 << endl;
    if (m1 > m2)
        larger = m1;
    else
        larger = m2;

    cout << "max is leaving with value " << larger << endl;
    return larger;
}