#include <bits/stdc++.h>

using namespace std;
clock_t a1, a2;

inline int read() {
    int s = 0, w = 1;
    char ch = getchar();
    while (ch < '0' || ch > '9')
        if (ch == '-') w = -w, ch = getchar();
    while (ch >= '0' && ch <= '9') {
        s = 10 * s + ch - '0';
        ch = getchar();
    }
    return s * w;
}

int main() {
    freopen("D:/python/TangDou/QiuckReadWrite/a.txt", "r", stdin);
    int a;
    a1 = clock();
    for (int i = 0; i < 100000; ++i) a = read();
    a2 = clock();
    cout << (double) (a2 - a1) / CLOCKS_PER_SEC;
    return 0;
}