题解 | 平方根

'''
method #1
import sys
import math
for line in sys.stdin:
    a = line.split()
    num=int(math.sqrt(int(a[0])))
    print(num)
'''

'''
method #2
'''
import sys

for line in sys.stdin:
    a = line.split()
    num=int((int(a[0])**(1/2)))
    print(num)