#!/usr/bin/python3
# coding=utf-8
# author：sundxfansky@sjtu.edu.cn

# 时序测试程序
import time


def delay(i):
    k = 0
    for j in range(i):
        k += 1


n = 5000
j = 0

a = time.time()
i = 1
c = time.time()
d = c - a
print(d)
print(d*5000)

a = time.time()
for i in range(n):
    j += 1
c = time.time()
d = c - a
print(d)

a = time.time()
delay(n)
c = time.time()
d = c - a
print(d)