Untitled

using namespace std;
#include <iostream>

int main()
{
    float a;
    float b;
    cin >> a;

    b = a - (int)a;
    b = b*10;

    if (b < 5) {
        a = (int)a;
    }
    if (b >= 5) {
        a = (int)a + 1;
    }
    cout << a;
}