#include <iostream>
using namespace std;
int main()
{
    double n1, n2, n3;
    cout << "Enter three numbers: ";
    cin >> n1 >> n2 >> n3; 
    if( n1>=n2 && n1>=n3 )
        cout << n1 << "is the largest number.";
    if( n2>=n1 && n2>=n3 )
        cout << n2 << "is the largest number.";
    if( n3>=n1 && n3>=n2 )
        cout<< n3 << "is the largest number.";
    return 0;
}