文件目录

#include <iostream>
using namespace std;

int main()
{
    double a, b, c;
    cin >> a >> b >> c;
    double d = -9999999;
    if (d < a)
        d = a;
    if (d < b)
        d = b;
    if (d < c)
        d = c;
    cout << d;
    return 0;
}