Problem:
 Score : 100 points    Problem Statement Given is an integer r .  How many times is the area of a circle of radius r larger than the area of a circle of radius 1 ?  It can be proved that the answer is always an integer under the constraints given.      Constraints  1 \leq r \leq 100  All values in input are integers.         Input Input is given from Standard Input in the following format:  r       Output Print the area of a circle of radius r , divided by the area of a circle of radius 1 , as an integer.        Sample Input 1 2      Sample Output 1 4  The area of a circle of radius 2 is 4 times larger than the area of a circle of radius 1 .  Note that output must be an integer - for example, 4.0 will not be accepted.       Sample Input 2 100      Sample Output 2 10000

Solution (Python):


def main():
    r=int(input())
    ans=r**2
    print(ans)
    
if __name__ == "__main__":
    main()

Solution (Python):
r = int(input())
print("{}".format(r**2))

Solution (Python):
import sys
r = int(input())
S = r*r
print(S)

Solution (Python):
r=int(input())
print(r**2)

Solution (Python):
r=int(input())
print(r**2)

Solution (Python):
r = int(input())
print(r*r)

Solution (Python):
r = int(input())
print(int(r**2))

Solution (Python):
print(int(input())**2)

Solution (Python):
r = int(input())

print(r*r)

Solution (Python):
r = int(input())
print(r *r)

Solution (Python):
print(int(input())**2)

Solution (Python):
r=int(input())
print(r*r)

Solution (Python):
print(int(input())**2)

Solution (Python):
r=int(input())
print(r*r)

Solution (Python):
r = int(input())

print((r**2)//1)

Solution (Python):
r=int(input())
print(r**2)

Solution (Python):
a=int(input())
print(a*a)

Solution (Python):
r = int(input())
print(r**2)

Solution (Python):
r = int(input())
print(r**2)

Solution (Python):
r =int(input())
print(r**2)

Solution (Python):
r = int(input())
print(r**2)

Solution (Python):
r=int(input())
print(r*r)

Solution (Python):
r = int(input())

print(r**2)

Solution (Python):
print(int(input())**2)

Solution (Python):
r = int(input())
print(r*r)

Solution (Python):
r = int(input())
print(r * r)

Solution (Python):
"""
N = list(map(int,input().split()))
S = [str(input()) for _ in range(N)]
S = [list(map(int,list(input()))) for _ in range(h)] 
print(*S,sep="")
"""

import sys
sys.setrecursionlimit(10**6)
input = lambda: sys.stdin.readline().rstrip()
inf = float("inf") 

r = int(input())
print(r*r)

Solution (Python):
r = int(input())

print(r**2)

Solution (Python):
n = int(input())
print(n **2 )

Solution (Python):
r = int(input())
print(r**2)

Solution (Python):
r = int(input())

print(r**2)

Solution (Python):

"""
A - Circle
https://atcoder.jp/contests/abc145/tasks/abc145_a

"""
import sys


def solve(r):
    return r ** 2


def main(args):
    r = int(input())
    ans = solve(r)
    print(ans)


if __name__ == '__main__':
    main(sys.argv[1:])

Solution (Python):
r = int(input())

print(int(r**2))

Solution (Python):
from sys import stdin
r = int(stdin.readline().rstrip())

ans = r**2
print(ans)

Solution (Python):
r = int(input())

print(r**2)

Solution (Python):
r=int(input())
print(r**2)

Solution (Python):

import math


def circle(r):
  return r*r*math.pi

r = input().rstrip()
r = int(r)


r_circle = circle(r)


one_r_circle = circle(1)

ans = round(r_circle / one_r_circle)
print(ans)

Solution (Python):
def main():
    r = int(input())
    print(r ** 2)


if __name__ == "__main__":
    main()

Solution (Python):
r=int(input())
print(r*r)

Solution (Python):
N=int(input())
print(N*N)

Solution (Python):
r=int(input())

print(r*r)

Solution (Python):
r = int(input())
print(r * r)

Solution (Python):
r = int(input())

print(r ** 2)

Solution (Python):
r = int(input())

print(r**2)

Solution (Python):
print(pow(int(input()), 2))

Solution (Python):
r = int(input())
print(r**2)

Solution (Python):
r = int(input())
print(r**2)

Solution (Python):
r = int(input())

print(r**2)

Solution (Python):
r = int(input())

print(r**2)

Solution (Python):
r = int(input())
print(r**2)

Solution (Python):
r=int(input())
print(r**2)

Solution (Python):
r = int(input())
print(r**2)

Solution (Python):
r=int(input())
print(r*r)

Solution (Python):
r = int(input())
ans = r ** 2
print(ans)

Solution (Python):
print(int(input())** 2)

Solution (Python):
import sys
import decimal 

def input():
    return sys.stdin.readline().strip()

def main():
    r = int(input())
    print(r**2)
    
    
main()

Solution (Python):
r = int(input())
print(r ** 2)

Solution (Python):
r = int(input())
print(r**2)

Solution (Python):
x = int(input())
print(x**2)

Solution (Python):
a = int(input())

b = a ** 2

print(b)

Solution (Python):
import math
a = 1
r = int(input())
b = (r**2)
print(b//a)

Solution (Python):
print(int(input())**2)

Solution (Python):
print(int(input())**2)

Solution (Python):
r=int(input())
print(r**2)

Solution (Python):
r = int(input())

a = r * r

print(a)

Solution (Python):
r = int(input())
print(r*r)

Solution (Python):
r = int(input())

print(r*r)

Solution (Python):
num = int(input())
print(num*num)

Solution (Python):
r = int(input())

print(r**2)

Solution (Python):
r = int(input())
s = r*r
print(s)

Solution (Python):
n = int(input())
print(n**2)

Solution (Python):

r = int(input())
print(r**2)

Solution (Python):
r = int(input())
print(r**2)

Solution (Python):
def main():
  num = int(input())
  print(num*num)
main()

Solution (Python):

r = int(input())
print(r * r)

Solution (Python):
r = int(input())
print(r * r)

Solution (Python):
n=int(input())
print(n**2)

Solution (Python):
r = int(input())
print(r**2)

Solution (Python):
a = int(input())
print(a*a)

Solution (Python):
a = int(input())
b = a**2
print(b)

Solution (Python):
print(int(int(input())**2))

Solution (Python):
r = int(input())

print(r**2)

Solution (Python):
print(int(input())**2)

Solution (Python):
print(int(int(input()) ** 2))

Solution (Python):
r = int(input())

print(r*r)

Solution (Python):
r = int(input())
print(r**2)

Solution (Python):
r = int(input())

print(r**2)

Solution (Python):
r = int(input())

print(r**2)

Solution (Python):
print(int(input()) ** 2)

Solution (Python):
from collections import defaultdict, deque
import sys


def LI(): return list(map(int, sys.stdin.buffer.readline().split()))
def I(): return int(sys.stdin.buffer.readline())
def LS(): return sys.stdin.buffer.readline().rstrip().decode('utf-8').split()
def S(): return sys.stdin.buffer.readline().rstrip().decode('utf-8')
def IR(n): return [I() for i in range(n)]
def LIR(n): return [LI() for i in range(n)]
def SR(n): return [S() for i in range(n)]
def LSR(n): return [LS() for i in range(n)]
def SRL(n): return [list(S()) for i in range(n)]
def MSRL(n): return [[int(j) for j in list(S())] for i in range(n)]


r = I()
print(r ** 2)

Solution (Python):
def circle(r):

    return r**2
def main():
    r = int(input())
    print(circle(r))

if __name__ == '__main__':
    main()

Solution (Python):
print int(raw_input()) ** 2

Solution (Python):
r=int(input())
print(r**2)

Solution (Python):
print(int(input())**2)

Solution (Python):
a = int(input())
print(a * a)

Solution (Python):
print(int(input())**2)

Solution (Python):
r = int(input())
print(r*r)

Solution (Python):
R = int(input())
print(int(R*R))

Solution (Python):
r = int(input())
print(r*r)

Solution (Python):
print(int(input())**2)

Solution (Python):
print(int(input()) ** 2)

Solution (Python):
x=int(input())
print(x**2)

Solution (Python):
print(int(input())**2)

Solution (Python):
print((int(input()))**2)

Solution (Python):
print(int(input())**2)

Solution (Python):
r=int(input())
print(r*r)

Solution (Python):
r = int(input())

ans = int(r ** 2)
print(ans)

Solution (Python):
a = int(input())
print(a ** 2)

Solution (Python):
import sys

input = lambda: sys.stdin.readline().rstrip()


def solve():
    r = int(input())
    print(r**2)


if __name__ == '__main__':
    solve()

Solution (Python):
r = int(input())
print(r**2)

Solution (Python):
import math

r = int(input())

print(str(r ** 2))

Solution (Python):
print( int(input()) ** 2)

Solution (Python):

import sys

read = sys.stdin.buffer.read
readline = sys.stdin.buffer.readline
readlines = sys.stdin.buffer.readlines


def main():
    r = int(input())
    print(r**2)


if __name__ == '__main__':
    main()

Solution (Python):
r = int(input())

print(r**2)

Solution (Python):
r = int(input())

print(r**2)

Solution (Python):
print(int(input())**2)

Solution (Python):
import sys
read = sys.stdin.read
readline = sys.stdin.readline
readlines = sys.stdin.readlines

def main():
    r = int(readline())

    print(r**2)
    

if __name__ == "__main__":
    main()

Solution (Python):
import sys

print((int(sys.stdin.readline())) ** 2)

Solution (Python):
r = int(input())

print(int(r**2))

Solution (Python):
r = int(input())

print(int(r ** 2))

Solution (Python):
import sys
def I(): return int(sys.stdin.readline().rstrip())

print(I()**2)

Solution (Python):
import sys
def I(): return int(sys.stdin.readline().rstrip())
def S(): return sys.stdin.readline().rstrip()

print(I()**2)

Solution (Python):
from sys import stdin, setrecursionlimit


def main():
    input = stdin.buffer.readline
    print(int(input()) ** 2)


if __name__ == "__main__":
    setrecursionlimit(10000)
    main()

Solution (Python):
print(int(input())**2)

Solution (Python):
r=int(input())
print(r**2)

Solution (Python):
r = int(input())
print(r * r)

Solution (Python):
n = int(input())
print(n**2)

Solution (Python):
print(int(input())**2)

Solution (Python):
r=int(input())
print(r*r)

Solution (Python):
print(int(input())**2)

Solution (Python):
r = int(input())
ans = r * r
print(ans)

Solution (Python):
r = int(input().rstrip())
print(r * r)

Solution (Python):
r = int(input())
print(r ** 2)

Solution (Python):
r=int(input())
print(r**2)

Solution (Python):
print((int(input()))**2)

Solution (Python):
r = int(input())
print(r**2)

Solution (Python):
a=int(input())
print(a*a)

Solution (Python):
a = int(input())
print(a**2)

Solution (Python):
print(int(input())**2)

Solution (Python):
n = int(input())

print(int(n * n))

Solution (Python):
print(int(input())**2)

Solution (Python):
N = int(input())
print(int(N**2))

Solution (Python):
r=int(input())
print(r*r)

Solution (Python):
r = int(input())
print(r**2)

Solution (Python):
print(int(input()) ** 2)

Solution (Python):
print(int(input())**2)

Solution (Python):
print(int(input())**2)

Solution (Python):
r = int(input())
print(r**2)

Solution (Python):
print((int(input()))**2)

Solution (Python):
print(int(input())**2)

Solution (Python):


import math

r = int(input())

print(math.floor(r * r))

Solution (Python):
r = int(input())

print(r * r)

Solution (Python):
print(int(input())**2)

Solution (Python):
r = input()
suq = int(r) * int(r)
print(suq)

Solution (Python):
r = int(input())
print(r**2)

Solution (Python):
print((int(input()))**2)

Solution (Python):
print(int(input())**2)

Solution (Python):
print(int(input())**2)

Solution (Python):
def main():
    r = int(input())
    print(r ** 2)


if __name__ == "__main__":
    main()

Solution (Python):
a = int(input())
print(a**2)

Solution (Python):
r = int(input())

print(r**2)

Solution (Python):
print(int(input())**2)

Solution (Python):
print(int(input())**2)

Solution (Python):
print(int(input()) ** 2)

Solution (Python):
print(int(input())**2)

Solution (Python):
r  =int(input())

print(int(r*r))

Solution (Python):
r=int(input())
print(r**2)

Solution (Python):
print(int(input())**2)

Solution (Python):


r = int(input())
print(r ** 2)

Solution (Python):
r=int(input())
print(r*r)

Solution (Python):
r=int(input())
print(r**2)

Solution (Python):
print(int(input())**2)

Solution (Python):
r = int(input())
print(r**2)

Solution (Python):
r=int(input())
print(r**2)

Solution (Python):
r = int(input())
print(r**2)

Solution (Python):
r = int(input())

print(r**2)

Solution (Python):
r=int(input())
print(r*r)

Solution (Python):
r = int(input())
print(r*r)

Solution (Python):
r = int(input())
print(r*r)

Solution (Python):
n=int(input())
print(n**2)

Solution (Python):
R=int(input())
print(R**2)

Solution (Python):
a=int(input())
print(a*a)

Solution (Python):
r = int(input())
print(r**2)

Solution (Python):
r=int(input())
print(r*r)

Solution (Python):
r=int(input())
print(r**2)

Solution (Python):
r = int(input())
print(r**2)

Solution (Python):
r = int(input())
print(r**2)

Solution (Python):
r=int(input())

print(r**2)

Solution (Python):
r = int(input())
print(int(r**2))

Solution (Python):
n=int(input())
print(n*n)

Solution (Python):
r = int(input())
print(pow(r,2))

Solution (Python):
print(int(int(input())**2))

Solution (Python):
print(int(input())**2)

Solution (Python):
A = int(input())
print (A**2)

Solution (Python):


r = int(input())
print(r**2)

Solution (Python):
r = int(input())
print(r * r)

Solution (Python):
print(int(input())**2)

Solution (Python):
r=int(input())
print(r*r)

Solution (Python):
r = int(input())
print(r ** 2)

Solution (Python):

R=int(input())

print(int(R**2))

Solution (Python):
r = int(input())

print(r**2)

Solution (Python):
n  = int(input())
print(n*n)

Solution (Python):
print(int(input()) ** 2)

Solution (Python):
r = int(input())
print(r**2)

Solution (Python):
r = int(input())
print(r**2)

Solution (Python):
r = int(input())
print(r*r)

Solution (Python):
print((int(input())**2))

Solution (Python):
n=int(input())
a=n*n
print(int(a))

Solution (Python):

r = int(input())
print(r ** 2)

Solution (Python):
r = int(input())
print(r**2)

Solution (Python):
r=int(input())
print(r**2)

Solution (Python):
r=int(input())
print(r**2)

Solution (Python):
print(int(input())**2)

Solution (Python):
r = int(input())
print(r*r)

Solution (Python):

r = int(input())
print(r**2)

Solution (Python):
r_input = input().split()
r = int(r_input[0])
print(r*r)

Solution (Python):
print(int(input())**2)

Solution (Python):

a=int(input())
print(a**2)

Solution (Python):
r = int(input())

m = int(3.14*r*r) + 1
ans = int(m/3.14)
print(ans)

Solution (Python):
r = int(input())
print(r ** 2)

Solution (Python):

if __name__ == "__main__":
    r = int(input())
    print(r * r)

Solution (Python):
r = int(input())

print(r*r)

Solution (Python):
r= input()
print r**2

Solution (Python):
r = int(input())
print(r * r)

Solution (Python):
r = int(input())
print(r*r)

Solution (Python):
r = int(input())
print(r*r)

Solution (Python):
print(str(int(input())**2))

Solution (Python):
print(int(input())**2)

Solution (Python):
r = int(input())
print(r*r)

Solution (Python):
print(int(input())**2)

Solution (Python):
print(int(input())**2)

Solution (Python):
print(int(input())**2)

Solution (Python):
a = int(input())
 
print(a**2)

Solution (Python):
a = int(input())

print(a**2)

Solution (Python):
def recta():
    r = int(input())
    area1 = r**2
    print(area1)


if __name__ == "__main__":
    recta()

Solution (Python):
N = int(input())
print(N ** 2)

Solution (Python):
import fileinput
from math import pi

r = int(input())

print(r * r)

Solution (Python):
print(int(input())**2)

Solution (Python):
r = int(input())
print(r**2)

Solution (Python):
r = int(input())
print(r ** 2)

Solution (Python):
r = int(input())
print(r**2)

Solution (Python):
r = int(input())
S=r*r
print(S)

Solution (Python):
def ABC_145_A():
    r = int(input())
    print(r*r)

if __name__ == '__main__':

    ABC_145_A()

Solution (Python):

def main():
    r = int(input())
    print(r**2)

if __name__ == '__main__':
    main()

Solution (Python):
r = int(input())
print(r**2)

Solution (Python):
r = int(input())
print(r*r)

Solution (Python):
r = int(input())
print(r**2)

Solution (Python):
n = int(input())
print(n*n)

Solution (Python):
r=int(input())
print(r**2)

Solution (Python):
r = int(input())
print(r**2)

Solution (Python):
r = int(input())

print(r * r)

Solution (Python):
r = int(input())
print(r**2)

Solution (Python):
r = int(input())

print(r * r)

Solution (Python):
def main():
    r = int(input())
    print(r*r)
    
if __name__ == '__main__':
    main()

Solution (Python):
N = int(input())
print(N**2)

Solution (Python):
from collections import defaultdict, deque, Counter
from heapq import heappush, heappop
from itertools import permutations, accumulate, combinations, combinations_with_replacement
from math import sqrt, ceil, floor, factorial
from bisect import bisect_left, bisect_right
from copy import deepcopy
from operator import itemgetter
from functools import reduce


import sys
def I(): return int(input())
def Is(): return map(int, input().split())
def LI(): return list(map(int, input().split()))
def TI(): return tuple(map(int, input().split()))
def IR(n): return [I() for _ in range(n)]
def LIR(n): return [LI() for _ in range(n)]
def TIR(n): return [TI() for _ in range(n)]
def S(): return input()
def Ss(): return input().split()
def LS(): return list(input())
def SR(n): return [S() for _ in range(n)]
def SsR(n): return [Ss() for _ in range(n)]
def LSR(n): return [LS() for _ in range(n)]
sys.setrecursionlimit(10**6)
MOD = 10**9+7
INF = float('inf')


r = I()
print(int(r**2))

Solution (Python):
print(int(input())**2)

Solution (Python):
a = int(input())
a *= a
print(a)

Solution (Python):
from math import pow
print(int(pow(int(input()),2)))

Solution (Python):
print(int(input())**2)

Solution (Python):
n = int(input())
print(n * n)

Solution (Python):
print(int(input())**2)

Solution (Python):
print(int(input())**2)

Solution (Python):
print(int(input())**2)

Solution (Python):
r = int(input())
print(r**2)

Solution (Python):
print(int(input())**2)

Solution (Python):


S1 = 1

r = input()
R = int(r)
S2 = R ** 2

result = S2 / S1
print(int(result))

Solution (Python):
r = int(input())
print(r*r)

Solution (Python):
r = int(input())
print(r ** 2)

Solution (Python):
def main():
    N = int(input())  

    print(N**2)

if __name__ == '__main__':
    main()

Solution (Python):
print(int(input()) ** 2)

Solution (Python):
print(int(input())**2)

Solution (Python):
r = int(input())
print(r ** 2)

Solution (Python):
print((int(input()))**2)

Solution (Python):
print(int(input())**2)

Solution (Python):
print(int(input())**2)

Solution (Python):


print(int(input()) ** 2)

Solution (Python):
r=int(input())

print(r*r)

Solution (Python):
print(pow(int(input()), 2))

Solution (Python):
print((int(input())**2))

Solution (Python):
s = int(input())
print(s**2)

Solution (Python):
import sys
sys.setrecursionlimit(10 ** 6)

int1 = lambda x: int(x) - 1
def II(): return int(input())

def MI(): return map(int, input().split())
def MI1(): return map(int1, input().split())

def LI(): return list(map(int, input().split()))
def LI1(): return list(map(int1, input().split()))
def LLI(rows_number): return [LI() for _ in range(rows_number)]

def printlist(lst, k='\n'): return k.join(list(map(str, lst)))
INF = float('inf')

def solve():
    r = II()
    print(r ** 2)


if __name__ == '__main__':
    solve()

Solution (Python):
if __name__ == "__main__":
    r = int(input())
    if (1 <= r <= 100) == False:
        print("error")
        exit(1)

    print (r ** 2)

Solution (Python):
r = int(input())
print(r ** 2)

Solution (Python):
if __name__ == '__main__':
   r = int(input())
   print(pow(r,2))

Solution (Python):
def main():
    r = int(input())
    print(r**2)
    return 0


if __name__ == "__main__":
    main()

Solution (Python):
print(int(input()) ** 2)

Solution (Python):
r=int(input())
print(r**2)

Solution (Python):
r = int(input())
print(r * r)

Solution (Python):
r = int(input())
print(int(r**2))

Solution (Python):
print(int(input())**2)

Solution (Python):
def main():
    r = int(input())
    print(int(r * r))

if __name__ == '__main__':
    main()

Solution (Python):
r = int(input())
print(r**2)

Solution (Python):
a = int(input())
print(a**2)

Solution (Python):
r = int(input())
print(r*r)

Solution (Python):
r = int(input());

print(r**2)

Solution (Python):
r = int(input())
print(r ** 2)

Solution (Python):
r = int(input())
print(r*r)

Solution (Python):
r = int(input())

print(r**2)

Solution (Python):
r=int(input())
print(r*r)

Solution (Python):
print(int(input())**2)

Solution (Python):
r=int(input())
print(r*r)

Solution (Python):
print(int((input()))**2)

Solution (Python):
r = int(input())
print(r**2)

Solution (Python):
r=int(input())
print(r**2)

Solution (Python):
print(int(input())**2)

Solution (Python):
r = int(input())
print(r*r)

Solution (Python):
r = int(input())
print(r**2)

Solution (Python):
r = int(input())
print(r**2)

Solution (Python):
N = int(input())
print(N*N)

Solution (Python):
r=int(input())
print(int(r**2))

Solution (Python):

"""
Created on Sun May  3 18:07:38 2020

@author: Kanaru Sato
"""

r = int(input())
print(r*r)

Solution (Python):
r = int(input())
print(r**2)

Solution (Python):
r=int(input())
print(int(r**2))

Solution (Python):
print((int(input()))**2)

Solution (Python):
n=int(input())
print(int(n**2))

Solution (Python):
r = int(input())
print(r**2)

Solution (Python):
r = int(input())
print(r*r)

Solution (Python):
print(int(input())**2)

Solution (Python):
r = int(input())
print(r*r)

Solution (Python):
r = int(input())

print(r**2)

Solution (Python):
print(int(input())**2)

Solution (Python):
n = int(input())
print(n**2)

Solution (Python):
n=int(input())
print(n*n)

Solution (Python):
r = int(input())
print(r**2)

Solution (Python):
r = int(input())
print(r * r)

Solution (Python):
r=int(input())
print(r*r)

Solution (Python):
print(int(input())**2)

Solution (Python):
print(int(input())**2)

Solution (Python):
print(int(input())**2)

Solution (Python):
import sys, math
from pprint import pprint
input = sys.stdin.readline
rs = lambda: input().strip()
ri = lambda: int(input())
rl = lambda: list(map(int, input().split()))
mod = 10**9 + 7

r = ri()

print(r**2)

Solution (Python):
r = int(input())
print(int(r**2))

Solution (Python):
print(int(input())**2)

Solution (Python):
print(int(input())**2)

Solution (Python):


r = int(input())

print(r ** 2)

Solution (Python):
print(int(input()) ** 2)

Solution (Python):
r = int(input())
print(r**2)

Solution (Python):
r = int(input())
print(r ** 2)

Solution (Python):
a=int(input())
print(a*a)

Solution (Python):

r=int(input())
print(r**2)

Solution (Python):


def main():
    r = int(input())
    print(r * r)


main()

Solution (Python):
print(int(input()) ** 2)

Solution (Python):

r = int(input())
print(r ** 2)

Solution (Python):
s = input()
print(int(s)*int(s))

Solution (Python):
n=int(input())
print(n**2)

Solution (Python):
r = int(input())
print(r * r)

Solution (Python):
r=int(input())
print(r**2)

Solution (Python):
r=int(input())
print(r**2)

Solution (Python):
r = input()

area = int(r)*int(r)

print(area)

Solution (Python):
print(int(input()) ** 2)

Solution (Python):
a=int(input())
print(int(a*a))

Solution (Python):
r = int(input())
print(r*r)

Solution (Python):
r = int(input())
print(r**2)

Solution (Python):
r=int(input())
print(r**2)

Solution (Python):
r = int(input())
print(r * r)

Solution (Python):
r = int(input())
print(r*r)

Solution (Python):
r = int(input())

print(r**2)

Solution (Python):
print(int(input())**2)

Solution (Python):
r = int(input())
print(r*r)

Solution (Python):
r=int(input())
print(pow(r,2))

Solution (Python):
print(int(input())**2)

Solution (Python):

import sys


def solve(r: int):
    print(pow(r, 2))
    return



def main():
    def iterate_tokens():
        for line in sys.stdin:
            for word in line.split():
                yield word
    tokens = iterate_tokens()
    r = int(next(tokens))  
    solve(r)


if __name__ == '__main__':
    main()

Solution (Python):
r = int(input())
print(r**2)

Solution (Python):
r=int(input())
print(r**2)

Solution (Python):
r = int(input())
print(r**2)

Solution (Python):
r = int(input())
print(r*r)

Solution (Python):
r = float(input())
re1 = 1 * 1
re =  r * r

print(int(re/re1))

Solution (Python):
import os

def main():
	r = int(input())
	print(r*r//1)

if __name__ == "__main__":
	main()

Solution (Python):
r = int(input())
print(r*r)

Solution (Python):
r=int(input())
print(r**2)

Solution (Python):
n = int(input())
print(n**2)

Solution (Python):
n = int(input())
print(n*n)

Solution (Python):
print(int(input())**2)

Solution (Python):
r = int(input())
print(r ** 2)

Solution (Python):
print(int(input())**2)

Solution (Python):

r = int(input())

en = r**2
ans = en//1
print(ans)

Solution (Python):
r = int(input())
print(r*r)

Solution (Python):
def main():
    r = int(input())
    print(r**2)
if __name__ == "__main__":
    main()

Solution (Python):
r = int(input())
print(r**2)

Solution (Python):
import sys
a = int(sys.stdin.readline().rstrip())
print(a**2)

Solution (Python):
r = int(input())

print(r**2)

Solution (Python):
rad = int(input())
S = round(rad*rad,0)
print(S)

Solution (Python):
print(int(input())**2)

Solution (Python):
N = int(input())

print(N**2)

Solution (Python):
print(int(input())**2)

Solution (Python):
r = int(input())
print(int(r**2))

Solution (Python):
r = int(input())
print(r**2)

Solution (Python):
print(int(input())**2)

Solution (Python):
r=int(input())
print(int(r*r))

Solution (Python):
r = int(input())
print(r*r)

Solution (Python):
print(int(input())**2)

Solution (Python):
print(int(input())**2)

Solution (Python):
r = int(input())

print(r**2)

Solution (Python):
r = int(input())
print(r**2)

Solution (Python):
import math

r = int(input())
print(int(r * r))

Solution (Python):
r = int(input())

print(r**2)

Solution (Python):
r = int(input())

print(r**2)

Solution (Python):
PI = 3
base_area = 1*1*PI

rad = int(input())
ans_area = rad*rad*PI

print(int(ans_area/base_area))

Solution (Python):
r = int(input())

ans = r ** 2
print(ans)

Solution (Python):
r = int(input())
print(r * r)

Solution (Python):
r = int(input())
print(r**2)

Solution (Python):
r = int(input())
print (r * r)

Solution (Python):
r = int(input())
print(r*r)

Solution (Python):
from sys import stdin

a = stdin.readline().rstrip()
a = int(a)
print(a*a)

Solution (Python):
a = int(input())
print(a**2)

Solution (Python):
r=int(input())
print(r**2)

Solution (Python):
r = int(input())
print(r**2)

Solution (Python):
a = int(input())
print(a ** 2)

Solution (Python):
r = int(input())
ans = r ** 2
print(ans)

Solution (Python):
r=int(input())
print(r**2)

Solution (Python):
print(int(input()) ** 2)

Solution (Python):
r = int(input())
print(r ** 2)

Solution (Python):
r = int(input())
print(r*r)

Solution (Python):
r=int(input())

print(int(r*r))

Solution (Python):
r = int(input())
print(r**2)

Solution (Python):
print(int(input().strip('\n'))**2)

Solution (Python):
r = int(input())

print(r**2)

Solution (Python):
n = int(input())

print(n ** 2)

Solution (Python):
r=int(input())
print(r**2)

Solution (Python):
print(int(input())**2)

Solution (Python):
import sys
from bisect import bisect_right as bsr
from collections import Counter as cnt
from collections import defaultdict as dd
from collections import deque
from fractions import gcd
from itertools import permutations as perm
from math import ceil, factorial, floor
from operator import itemgetter as ig

sys.setrecursionlimit(1000000)


args = None
INF = float("inf")
MOD = int(1e9 + 7)


def input(*ps):
    if type(ps[0]) is list:
        return [input(*ps[0][:-1]) for _ in range(ps[0][-1])]
    elif len(ps) == 1:
        return ps[0](next(args))
    else:
        return [p(next(args)) for p in ps]


def yesno(v, yes="Yes", no="No", upper=False):
    if upper:
        print([yes.upper(), no.upper()][not v])
    else:
        print([yes, no][not v])


def main():
    """エントリーポイント"""
    R = input(int)
    print(R ** 2)


if __name__ == '__main__':
    args = iter(sys.stdin.read().split())
    main()

Solution (Python):
r = int(input())
print(r ** 2)

Solution (Python):
r = int(input())
print(int(r*r))

Solution (Python):
print(int(input())**2)

Solution (Python):
r=int(input())
print(r**2)

Solution (Python):
r = input()
r = int(r)

ans = r ** 2
print(ans)

Solution (Python):
print(int(input())**2)

Solution (Python):

r=int(input())
print(r**2)

Solution (Python):
r = int(input())
print(r ** 2)

Solution (Python):
r = int(input())
print(r*r)

Solution (Python):
r = int(input())
print(r**2)

Solution (Python):
r = int(input())
print(r*r)

Solution (Python):
r = int(input())

print(round(r * r / 1))

Solution (Python):
r = int(input())
ans = int(r**2)
print(ans)

Solution (Python):
r = int(input())
print(r**2)

Solution (Python):
r = int(input())
print(r**2)

Solution (Python):
print(int(input())**2)

Solution (Python):
from sys import stdin

def main():
    r = int(stdin.readline())

    if r < 1:
        print(0)
    else:
        circle = r * r
        print(circle)

if __name__ == '__main__':
    main()

Solution (Python):
from sys import stdin

r = int(stdin.readline())

if r < 1:
    print(0)
else:
    circle = r * r
    print(circle)

Solution (Python):


r = int(input())
print(r**2)

Solution (Python):
r = int(input())
print(int(r*r))

Solution (Python):
r = int(input())
print(r*r)

Solution (Python):
r = int(input())
print(r*r)

Solution (Python):
r = int(input())
print(r*r)

Solution (Python):
r=int(input())
print(r**2)

Solution (Python):
r=int(input())
print(r**2)

Solution (Python):
a = int(input())

print(a*a)

Solution (Python):
r = int(input())
print(r**2)

Solution (Python):
print(int(input())**2)

Solution (Python):
r = int(input())

print(r**2)

Solution (Python):
print(int(input())**2)

Solution (Python):
r = int(input())
print(r**2)

Solution (Python):
r = int(input())

print(r**2)

Solution (Python):
r = int(input())
print(r*r)

Solution (Python):
print(int(input())**2)

Solution (Python):
print(int(input())**2)

Solution (Python):
print(int(input())**2)

Solution (Python):
print(int(input())**2)

Solution (Python):
r=int(input())
print(r*r)

Solution (Python):
print(int(input())**2)

Solution (Python):
s = int(input())
print(s**2)

Solution (Python):
r = input()
r = int(r)

print(r * r)

Solution (Python):
N=int(input())
print(N*N)

Solution (Python):
import math
import fractions
import sys
import itertools
import numpy as np

def input1():
	return int(input())


def input2():
	return map(int,input().split())


def input_array():
	return list(map(int,input().split()))

def keta(N):
	return len(str(N))

r=input1()
print(r**2)

Solution (Python):
r = int(input())
print(r*r)

Solution (Python):
print(int(input())**2)

Solution (Python):
r = int(input())
print(r**2)

Solution (Python):
r = int(input())
print(r**2)

Solution (Python):
import sys, re
from collections import deque, defaultdict, Counter
from math import ceil, sqrt, hypot, factorial, pi, sin, cos, radians
from itertools import accumulate, permutations, combinations, product
from operator import itemgetter, mul
from copy import deepcopy
from string import ascii_lowercase, ascii_uppercase, digits
from bisect import bisect, bisect_left
from fractions import gcd
from heapq import heappush, heappop
from functools import reduce
def input(): return sys.stdin.readline().strip()
def INT(): return int(input())
def MAP(): return map(int, input().split())
def LIST(): return list(map(int, input().split()))
sys.setrecursionlimit(10 ** 9)
INF = float('inf')
mod = 10 ** 9 + 7

r = INT()
print(r**2)

Solution (Python):
r=int(input())
print(r*r)

Solution (Python):
r = int(input())

print(r*r)

Solution (Python):

import sys
import numpy as np


def solve(r: int):
    print(r*r)
    return



def main():
    def iterate_tokens():
        for line in sys.stdin:
            for word in line.split():
                yield word
    tokens = iterate_tokens()
    r = int(next(tokens))  
    solve(r)

if __name__ == '__main__':
    main()

Solution (Python):
icase=0
if icase==0:
    r=int(input())
    print(r*r)

Solution (Python):
r = int(input())
print(r*r)

Solution (Python):
r = int(input())
print(r**2)