#include<iostream>

using namespace std;

int max(int,int);

int max(int m,int n){return(m>n)?m:n;}

int main(){

cout<<"请输入3个整数"<<endl;

int x,y,z;

cin>>x>>y>>z;

cout<<"这三个整数中最大的是:";

cout<< max(max(x,y),z)<<endl;

}