#include<iostream>
using namespace std;
int max (int x,int y);
int main()
{
    int a,b,c,m1,m2;
    cout<<"input a,b,c,:\t";
    cin>>a>>b>>c;
    m1=max(a,b);
    m2=max(m1,c);
    cout<<"max="<<m1<<m2;
}
int max(int x,int y)
{
    if (x>y)
        return x;
    else return y;
}