Problem:
Circle Write a program which calculates the area and circumference of a circle for given radius r . Input A real number r is given. Output Print the area and circumference of the circle in a line. Put a single space between them. The output should not contain an absolute error greater than 10 -5 . Constraints  0 < r < 10000  Sample Input 1 2 Sample Output 1 12.566371 12.566371 Sample Input 2 3 Sample Output 2 28.274334 18.849556

Solution (Python):
import math
r = float(input())
S = math.pi * r * r
l = 2 * math.pi * r
print(f"{S:.6f} {l:.6f}")

Solution (Python):
import math
r = float(input())
print("%.6f %.6f" % (math.pi * r * r, 2 * math.pi * r))

Solution (Python):
import math
a=float(input())
print("%.10f %.10f"%(a*a*math.pi, 2*a*math.pi))

Solution (Python):
r = float(input())
n = 3.141592653589
print("{:.6f} {:.6f}".format(r**2*n,r*2*n))

Solution (Python):

import math
r = float(input())

print("%.10f %.10f"%(r*r*math.pi,2.0*math.pi*r))

Solution (Python):
import math
r = float(input())
print(r * r * math.pi,2 * r * math.pi)

Solution (Python):
r = float(input())
pai = 3.141592653589
m = pai * r ** 2
print(f"{m:.5f} {2 * pai * r:.5f}")

Solution (Python):
import math

r = float(input())
print("%.10f %.10f" % (r * r * math.pi, 2.0 * math.pi * r))

Solution (Python):
import math
r = float(input())

print("%.10f %.10f"%(r*r*math.pi,2.0*math.pi*r))

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

pi=3.141592653589

print(r**2*pi,2*r*pi)

Solution (Python):
r1=input()
r=float(r1)
l=2*r*3.14159265359
a=r*r*3.14159265359
print(f"{a} {l}")

Solution (Python):


from collections import* 
from fractions import gcd
from functools import* 
from itertools import* 
from operator import mul
from bisect import* 
from heapq import* 
from math import*  
from copy import deepcopy
import sys

sys.setrecursionlimit(10**6)


def main():
    n=float(input())
    print(n**2*pi,n*2*pi)
    
    
    
if __name__ == '__main__':
    main()

Solution (Python):
import decimal


PI = decimal.Decimal("3.141592653589")

r = decimal.Decimal(input())

print(f"{r ** 2 * PI} {2 * r * PI}")

Solution (Python):
r = float(input())
pi = 3.141592653589
s = pi * r ** 2
l = 2 * pi * r
print(s, l)

Solution (Python):
import math as mp
num_val = float(input())
list_circle = [round(mp.pi * num_val ** 2, 6), round(2 * mp.pi * num_val, 6)]
print(" ".join(map(str, list_circle)))

Solution (Python):
r = float(input())
l = 2*3.141592653589*r
S=3.141592653589*r**2
print(f"{S:.6f} {l:.6f}")

Solution (Python):

pi=3.141592653589
r=float(input())
print("{:.6f} {:.6f}".format(r*r*pi,2*r*pi))

Solution (Python):
r = float(input())
a = r*r*3.14159265359
b = 2*r*3.14159265359
print(f"{a:.6f} {b:.6f}")

Solution (Python):
import math
r = float(input())
print("%f %f" % (r * r * math.pi, 2 * math.pi * r))

Solution (Python):
import math
r = float(input())

print("%.6f %.6f"%(r*r*math.pi,2.0*math.pi*r))

Solution (Python):
import math
r=float(input())
s=r**2*math.pi
l=2*r*math.pi
print('{:.6f}'.format(s),'{:.6f}'.format(l))

Solution (Python):
r = float(input())
print(r*r*3.141592653589, r*2*3.141592653589)

Solution (Python):
r = float(input())
print(r*r*3.141592653589, 2*r*3.141592653589)

Solution (Python):
r = float(input())
import math
s = r ** 2 * math.pi
l = 2 * r * math.pi
print(s,l)

Solution (Python):
r = float(input())
a = r*r*3.141592653589
b = 2*r*3.141592653589
print(a,b)

Solution (Python):
r= float(input())
import math
pi=math.pi

s = (r**2)*pi
l = 2*r*pi
print(s, l)

Solution (Python):
pi = 3.14159265359

r = float(input())
s = r*r*pi
l = 2*r*pi
print(s,l)

Solution (Python):

r = float(input())
p = 3.141592653589
print(p*r*r, 2*p*r)

Solution (Python):
r = float(input())
pi = 3.1415926535897932384626
print(pi * r * r, 2 * pi * r)

Solution (Python):
r = float(input())
import math
print(r * r * math.pi, r * 2 * math.pi)

Solution (Python):
from math import pi
r=float(input())
print("{} {}".format(r*r*pi,2*pi*r))

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

print("%.5f %.5f"%(r*r*3.141592653589,r*2*3.141592653589))

Solution (Python):
from math import pi

r = float(input())
print(r**2 * pi, 2 * r * pi)

Solution (Python):
r = float(input())
pi = 3.1415926535897
print(r * r * pi,2 * r * pi)

Solution (Python):
r = float(input())
from math import pi
print( f"{((pi)*r**2):.6f}", f"{(2*(pi)*r):.6f}")

Solution (Python):
import math
r =float(input())
print("%.10f %.10f"%(r*r*math.pi,r*math.pi*2.0))

Solution (Python):
r = float(input())
a = float(r*r*3.141592653589)
b= float(2*r*3.141592653589)
print (a,b)

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

pi=float(3.141592653589)

S = r*r*pi
L = 2*r*pi

print(S,L)

Solution (Python):
r = float(input())
s = r*r*3.141592653589
l = 2*r*3.141592653589
print("{0:.6f}".format(s), "{0:.6f}".format(l))

Solution (Python):
a=float(input())
import math
m=math.pi*a*a
l=math.pi*a*2

print(m,l)

Solution (Python):
r = float(input())
s = r*r*3.141592653589
v = 2*r*3.141592653589
print("{0:.6f}".format(s),"{0:.6f}".format(v))

Solution (Python):
r=float(input())
a=r*r*3.141592653589
b=2*r*3.141592653589
print("{:.6f}".format(a),"{:.6f}".format(b))

Solution (Python):
import math
pi = math.pi
r = float(input())

print(r*r*pi, 2*r*pi)

Solution (Python):
r = float(input())
a = r*r*3.141592653589
b = 2*r*3.141592653589
print("{:.6f}".format(a),"{:.6f}".format(b))

Solution (Python):
r = float(input())
    
a = r * r * 3.141592653589
b = 2 * r * 3.141592653589
    
print(f"{a:.6f} {b:.6f}")

Solution (Python):
r = float(input())
   
a = r * r * 3.141592653589
b = 2 * r * 3.141592653589
   
print(f"{a:.6f} {b:.6f}")

Solution (Python):
r = float(input())
 
a = r * r * 3.141592653589
b = 2 * r * 3.141592653589
 
print(f"{a:.6f} {b:.6f}")

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

a = r * r * 3.141592653589
b = 2 * r * 3.141592653589

print(f"{a:.6f} {b:.6f}")

Solution (Python):
r=float(input())
 
print("%.5f %.5f"%(r*r*3.141592653589,r*2*3.141592653589))

Solution (Python):
import math
r=float(input())
print("{0:.6f} {1:.6f}".format(math.pi*r**2, 2*math.pi*r))

Solution (Python):
r=float(input())
   
print("%.5f %.5f"%(r*r*3.141592653589,r*2*3.141592653589))

Solution (Python):
r=float(input())
  
print("%.5f %.5f"%(r*r*3.141592653589,r*2*3.141592653589))

Solution (Python):
r=float(input())
 
print("%.5f %.5f"%(r*r*3.141592653589,r*2*3.141592653589))

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

print("%.5f %.5f"%(r*r*3.141592653589,r*2*3.141592653589))

Solution (Python):
r=float(input())
pi=3.14159265358979
print('{:.12f} {:.12f}'.format((r**2)*pi,(2*r)*pi))

Solution (Python):
import math
r = float(input())
print(r * r * math.pi, r * 2 * math.pi)

Solution (Python):
import math
r = float(input())
print("%.5f %.5f" %(math.pi*(r**2),2*math.pi*r))

Solution (Python):
from math import pi
r=float(input())
print("{:.5f} {:.5f}".format(r*r*pi, 2*r*pi))

Solution (Python):
pi=3.141592653589
r=float(input())
print("{:.6f}".format(r*r*pi),"{:.6f}".format(2*pi*r))

Solution (Python):
import math
r = float(input())

print("%.10f %.10f"%(r**2*math.pi,2.0*math.pi*r))

Solution (Python):
def main():

    
    r = float(input())

    pi = 3.141592653589

    area = pi * r * r
    length = 2 * pi *r

    print('{0:.8f} {1:.8f}'.format(area, length))
    

if __name__ == "__main__":
    main()

Solution (Python):
import math

r = float(input())

circumference = 2 * math.pi * r
s = math.pi * r * r

print(s, circumference)

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

pi=3.141592653589
print("%f %f" % (r*r*pi, r*2*pi))

Solution (Python):
import math
r = float(input())
print("%.10f %.10f"%(r*r*math.pi,2*r*math.pi))

Solution (Python):
from math import pi
r = float(input())
print(f'{(r ** 2) * pi :4f} {2 * pi * r :4f}')

Solution (Python):
import math

r=float(input())

area=r*r*math.pi
circumference=2*r*math.pi

print("{:.6f} {:.6f}".format(area,circumference))

Solution (Python):
import math
r = float(input())
pi = math.pi
print("{0:.10f} {1:.10f}".format(r*r*pi, 2*r*pi))

Solution (Python):
import math

if __name__ == '__main__':
	r = float(input())
	print("%f %f" % (math.pi*r**2, math.pi*r*2))

Solution (Python):
r=float(input())
print(f"{r*r*3.141592653589:.6f} {2*r*3.141592653589:.6f}")

Solution (Python):
import math
pi = math.pi

samp = input()
samp = samp.split(" ")
r = float(samp[0])

s = pi * r**2
l = 2 * pi * r

print(("{:.6f} {:.6f}").format(s,l))

Solution (Python):
pi = 3.1415926535897
r = float(input())
print(pi*r**2, 2*pi*r)

Solution (Python):





class math:
    
    pi = 3.14159265358979323846264338

    
    def gcd(self, a, b):
        if b == 0:
            return a
        return self.gcd(b, a%b)

math = math()




R = float(input())




print("{0:.6f} {1:.6f}".format(R*R*math.pi,R*2*math.pi))

Solution (Python):
import math
r = float(input())
a = float(math.pi*2*r)
b = float(math.pi*r*r)
print("{} {}".format(round(b,5),round(a,5)))

Solution (Python):
r=float(input())
m=3.141592653589

a='{:.6f}'.format(r*r*m)
c='{:.6f}'.format(2*r*m)
print(a+' '+c)

Solution (Python):
import math

r = float(input())
S = math.pi * r * r
l = 2 * math.pi * r
print(S,l)

Solution (Python):
import math
r=float(input())
pi=3.141592653589
area=float(r**2*pi)
l=float(2*r*pi)
print("{:.6f}".format(area),"{:.6f}".format(l))

Solution (Python):
import math
r=float(input())
print("%.10f %.10f"%(math.pi*r**2,2*r*math.pi))

Solution (Python):
import math
r = float(input())
a = math.pi
area = r * r * a
circle = r * 2 * a
area = "{0:.6f}".format(area)
circle = "{0:.6f}".format(circle)
ac_list = [area, circle]
for j in range(1):
    print(ac_list[j],end = ' ')

print(ac_list[1])

Solution (Python):
from math import pi
r=float(input())
print(f'{pi*r**2:.5f} {2*pi*r:.5f}')

Solution (Python):
r = float(input())
p = 3.141592653589793
print(r*r*p,2*p*r)

Solution (Python):
r=float(input())
pi=3.141592653589
print(r*r*pi,2*r*pi)

Solution (Python):
import math
r=float(input())
print("%.10f %.10f" % (math.pi*r*r, math.pi*r*2.0))

Solution (Python):
r = float(input())
p = float()
p = 3.141592653589

m = r * r * p
e = 2 * r * p

m = str(m)
e = str(e)
k = " "

ans = m + k + e
print(ans)

Solution (Python):
pi = 3.141592653589793238
r = float(input())
print('%.10f %.10f'%(pi * r * r,2 * pi * r))

Solution (Python):
import math
r = float(input())
a = math.pi * r**2
c = 2 * math.pi * r
print('{0:.5f} {1:.5f}'.format(a, c))

Solution (Python):
import math
r = float(input())
 
print("%.10f %.10f"%(r*r*math.pi,2.0*math.pi*r))

Solution (Python):
import math

r = float(input())
print(f'{r**2*math.pi:.5f} {r*2*math.pi:.5f}')

Solution (Python):
import math

pi = math.pi
r = float(input())

circle = round(2 * r * pi, 6)
circle_area = round(r ** 2 * pi, 6)

print(circle_area,circle)

Solution (Python):
r = float(input())
R = 3.141592653589

S = r*r*R
L = 2*r*R
print("{:.6f} {:.6f}".format(S,L))

Solution (Python):
import math

r =float(input())
print(f"{r**2*math.pi:f} {2*r*math.pi:f}")

Solution (Python):
r = float(input())
pi = 3.141592653589
print("{:f} {:f}".format(pi*r**2,2*pi*r))

Solution (Python):
import math

r = float(input())

print("{0:.8f}".format(r * r * math.pi), "{0:.8f}".format(2 * r * math.pi))

Solution (Python):
i =float(input())

pi = 3.141592653589

print(f"{i*i*pi:.6f} {2*i*pi:.6f}")

Solution (Python):
import math

r = float(input())
print(f"{math.pi * r ** 2:.6f}", f"{2 * math.pi * r:.6f}")

Solution (Python):
import math
 
 
r=float(input())
print("%f %f" %(r*r*math.pi,2*r*math.pi))

Solution (Python):
import math

r = float(input())

print("%.6f %.6f" %(math.pi*r*r , 2*r*math.pi))

Solution (Python):
r = float(input())
area = r**2*3.141592653589
circle = 2*r*3.141592653589
print(f"{area:5f} {circle:5f}")

Solution (Python):



import math

r = float(input())
print("{0:.5f} {1:.5f}".format(r ** 2 * math.pi, r * 2 * math.pi))

Solution (Python):
r = float(input())
pi = 3.141592653589
print(f"{(r*r*pi):.6f}",f"{(2*r*pi):.6f}")

Solution (Python):
import math
r = float(input())
print("{0:.6f} {1:.6f}".format(r*r*math.pi, 2 * r * math.pi) )

Solution (Python):
import math
rad = float(input())

print("%.10f %.10f"%(rad*rad*math.pi,2.0*math.pi*rad))

Solution (Python):
a=float(input())
pi=3.141592653589793
print("{:.5f} {:.5f}".format(pi*a**2,2*pi*a))

Solution (Python):
r = float(input())
print('{0:.6f} {1:.6f}'.format(r*r*3.141592653589, 2*r*3.141592653589))

Solution (Python):



import math
r = float(input())
S = r ** 2 * math.pi
L = r * 2 * math.pi

print("{0:<.6f} {1:<.6f}".format(S, L))

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

pi=3.141592653589

print("{:.6f} {:.6f}".format(pi*a*a,2*pi*a))

Solution (Python):
import math
r = float(input())
print(r * r * math.pi, 2 * r * math.pi)

Solution (Python):
from math import pi
n=float(input())
print(n*n*pi,n*2*pi)

Solution (Python):
r = float(input())
pi = 3.14159265358979323846264
l = 2 * pi * r
s = pi * r * r
print('{0:.5f} {1:.5f}'.format(s, l))

Solution (Python):
import math
r = float(input())
print(math.pi*(r**2),math.pi*2*r)

Solution (Python):
import math
math.pi
r = float(input())
s = r**2*math.pi
c = 2*r*math.pi
print(str(s) + ' ' + str(c))

Solution (Python):
import math
r = input()
r = float(r)
a = math.pi * r * r
l = 2 * math.pi *r
print(round(a,6), round(l,6))

Solution (Python):
import math
r = float(input())
h = 2*r*math.pi
s = r*r*math.pi
print(s,h)

Solution (Python):
import math
r = float(input())
m = r ** 2 * math.pi
l = 2 * r * math.pi
print("{:.6f} {:.6f}".format(m, l))

Solution (Python):
import math
r = float(input())
s = math.pi * r * r
a = math.pi * 2 * r
print(s, a)

Solution (Python):
n = float(input())
print("{:.6f} {:.6f}".format(n*n*3.141592653589,n*2*3.141592653589))

Solution (Python):
import math
x = float(input())
print('{0} {1}'.format(x**2*math.pi,x*2*math.pi))

Solution (Python):
import math

r = float(input())
print('%f %f' % (math.pi*r **2, 2*math.pi *r))

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

b = 3.14159265358979323846264338 * a * a

c = 2 * 3.14159265358979323846264338 * a

print(str(b) + " " + str(c))

Solution (Python):
import math
r=float(input())
print(f"{r**2*math.pi:.6f} {r*2*math.pi:.6f}")

Solution (Python):
import math
R = float(input())
P = math.pi
print(round(P * R * R, 6), round(2 * P * R, 6))

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

b = float(a * a *3.141592653589)
c = float(a * 2 *3.141592653589)

print(b, c)

Solution (Python):
import math

r = float(input())
print("%.5f %.5f" % (r**2*math.pi, 2*math.pi*r))

Solution (Python):
PI = 3.14159265359
r = float(input())
print ('{:.5f} {:.5f}'.format(PI * r * r, 2 * r * PI))

Solution (Python):
pi = 3.14159265358979
r  = float(input())
area = pi * r * r
circ = 2 * pi * r
print(f"{area:.6f} {circ:.6f}")

Solution (Python):
import math
x = float(input())
print("%10f %.10f"%(math.pi*x*x,math.pi*2*x) )

Solution (Python):

r=float(input())
pi = 3.141592653589

print("{0:.6f} {1:.6f}".format(pi*r*r, 2*pi*r))

Solution (Python):
from math import pi


r = float(input())
print(f'{r**2*pi: .6f} {r*2*pi: .6f}')

Solution (Python):
import math
pi = math.pi
r = float(input())
s = pi*r**2
l = 2*pi*r
s = round(s,6)
l = round(l,6)
print(s,l)

Solution (Python):
from math import pi
r = float(input())
print('{:6f} {:6f}'.format(r ** 2 * pi, 2 * r * pi))

Solution (Python):
import math
r = float(input())
print('{:.6f} {:.6f}'.format(r*r*math.pi,2*r*math.pi))

Solution (Python):
r = float(input())
print(f"{r*r*3.141592653589:.6f} {r*2*3.141592653589:.6f}")

Solution (Python):
import math
x = math.pi

r = float(input())
print("{} {}".format(x*r*r,2*x*r))

Solution (Python):
pi = 3.141592653589793

r = float(input())

print(f'{pi * r**2} {2 * pi * r} ')

Solution (Python):
import math
r = float(input())
print("{:.5f}".format(math.pi * r * r), "{:.5f}".format(2 * math.pi * r))

Solution (Python):
import math

r = float(input())
print("{:.6f}".format(math.pi * r ** 2), "{:.6f}".format(2 * math.pi * r))

Solution (Python):


import math
pi = math.pi
r = float(input())
print(str(format(r ** 2 * pi,"5f")) + " " + str(format(r * pi * 2,"5f")))

Solution (Python):
import math


def main():
    r = float(input())
    print('{:.5f} {:.5f}'.format(r * r * math.pi, r * 2 * math.pi))


main()

Solution (Python):
import math

r = float(input())
print("{:.5f} {:.5f}".format(math.pi*r*r, 2*math.pi*r))

Solution (Python):
r = float(input())
pi = 3.14159265359
print("{:.6f} {:.6f}".format(pi * r ** 2, 2 * pi * r))

Solution (Python):
import math
a=float(input())
print(a**2*3.141592653589,2*a*3.141592653589)

Solution (Python):
import math
r=float(input())
s=math.pi*r**2
per=math.pi*2*r

print('{:.5f}'.format(s),'{:.5f}'.format(per))

Solution (Python):
import math
r = float(input())
print("{:.6f} {:.6f}".format(r**2 * math.pi, r*2.0 * math.pi))

Solution (Python):
import math
r = float(input())
print("%.10f %.10f"%(r*r*math.pi,r*2*math.pi))

Solution (Python):
r = float(input())
PI = 3.14159265358979323846
print(r * r * PI, 2 * PI * r)

Solution (Python):
r = float(input())
PAI = 3.141592653589
l = 2 * PAI * r
s = PAI * (r ** 2)
print(s,l)

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

area="{:.6f}".format(r*r*3.141592653589)
circleLength="{:.6f}".format(r*2*3.141592653589)

print(area,circleLength)

Solution (Python):
import math

r = float(input())
pai = math.pi
print(round(r * r * pai, 6), end=' ')
print(round(2 * r * pai, 6))

Solution (Python):
import math
r = float(input())
print('%.6f %.6f'%(r * r * math.pi, 2 * r * math.pi))

Solution (Python):
from math import pi
r = eval(input())
print( pi * r * r, 2 * pi * r)

Solution (Python):
import math
r = float(input())
pi = math.pi
print ("%.10f %.10f" % (r ** 2 * pi, r * 2 * pi))

Solution (Python):
import math
r=float(input())
print(math.pi*r**2,math.pi*2*r)

Solution (Python):
r = float(input())
p = 3.141592653589
print(p*r*r, 2*p*r)

Solution (Python):
from math import pi

in_str = input()
r = float(in_str)

area = pi * r**2
circumference = 2 * pi * r
print("{0:f} {1:f}".format(area, circumference))

Solution (Python):
import math
r = float(input())
s = r*r*math.pi
l = 2*r*math.pi
print('{:.6f}'.format(s),'{:.6f}'.format(l))

Solution (Python):
r = float(input())
pi = 3.141592653589793238462643383279
print("{:.6f}".format((r**2)*pi),2*r*pi)

Solution (Python):
import math
r = float(input())
print(f'{math.pi*r*r:.12f} {2*math.pi*r:.12f}')

Solution (Python):
import math
r = float(input())
pi = math.pi
S = pi*r**2
l = 2*pi*r
print(S,l)

Solution (Python):
r=float(input())
pi=3.14159265358979323
print("%.10f %.10f" %(r*r*pi,2*pi*r))

Solution (Python):
r = float(input())
print("%f %f"%(3.141592653589793*r*r, 2 * 3.141592653589793*r))

Solution (Python):
from math import pi
r = float(input())
print(r**2*pi, 2*(r*pi))

Solution (Python):
import math
r=float(input())
print('{:.6f} {:.6f}'.format(r*r*math.pi,2*r*math.pi))

Solution (Python):
import sys
import math

r = float(sys.stdin.read())
print('{0:.6f} {1:.6f}'.format(r * r * math.pi, 2 * r * math.pi))

Solution (Python):
from math import pi

r = float(input())

area = r**2*pi
circle = r*2*pi

print(f'{area:.6f} {circle:.6f}')

Solution (Python):
import math
r = float(input())
men = float(r**2*math.pi)
syu = float(2*r*math.pi)
print("{} {}".format(round(men, 6), round(syu, 6)))

Solution (Python):
pi = 3.1415926535897
r = float(input())
print(pi*r**2, 2*pi*r)

Solution (Python):
import math
r=float(input())
print(r**2*math.pi,r*2*math.pi)

Solution (Python):
import math
pi = math.pi
r = float(input() )
print("%.10f %.10f" % (pi * r * r, 2 * pi * r) )

Solution (Python):
import math
r = float(input())
print(r**2*math.pi,2.0*math.pi*r)

Solution (Python):
import math
r = float(input())
print(f'{r*r*math.pi:.5f} {2*math.pi*r:.5f}')

Solution (Python):
import math
a=float(input())
print('%f %f'%(a*a*math.pi,2*a*math.pi))

Solution (Python):
import math
n = float(input())

print(math.pi*(n**2),2*math.pi*n)

Solution (Python):
import math

r = float(input())
print(r*r*math.pi, r*2*math.pi)

Solution (Python):
r = float(input())
pi = 3.141592653589793238462643383279
square = pi * r * r
around = pi * r * 2
print(str(square) + " " + str(around))

Solution (Python):
import math
p=math.pi
r=float(input())
l=2*p*r
s=p*pow(r,2)

print(str(s)+" "+str(l))

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

PI = 3.141592653589

area = r * r * PI
c_length = (r + r) * PI

print(area, c_length)

Solution (Python):
import math

data = input().split()
r = float(data[0])

line = math.pi*2*r
area = math.pi*(r**2)

print('%.6f' % area, end=" ")
print('%.6f' % line, end="")

Solution (Python):
import math
r = float(input())
S = r**2*math.pi
L = r*2*math.pi
print(S,L)

Solution (Python):
import math 
pi = math.pi
r = float(input())
L = r*2*pi
S = r**2*pi
print(S,L)

Solution (Python):
import math
r=float(input())
print(math.pi*r**2,2*r*math.pi)

Solution (Python):
import math
r = float(input())
cir = 2*r*math.pi
area = r*r*math.pi
print('%f %f' % (area, cir))

Solution (Python):
import math
r = float(input())
area = round((math.pi * r**2),7)
circum = round((math.pi * r * 2),7)
print (str(area) + " " + str(circum))

Solution (Python):
import math
pi=math.pi
r=float(input())
print("{:.5f} {:.5f}".format(r*r*pi,2*r*pi))

Solution (Python):
try:
    r  =  float(input())
except:
    exit

pi = 3.141592653589793
l = r * 2 * pi
m = r * r * pi

print (m,l)

Solution (Python):
import math

r = float(input())

s = '{:.6f}'.format(r * r * math.pi)
l = '{:.6f}'.format(2 * r * math.pi)

print(s, l)

Solution (Python):
import math
r=float(input())
print("%.10f %.10f"%(r**2*math.pi,r*2*math.pi))

Solution (Python):
import math
r = float(input())
print("{0:f} {1:f}".format(r*r*math.pi, 2*r*math.pi))

Solution (Python):
import math
t = float(input())
print("%f %f"%(t*t*math.pi,2.0*t*math.pi))

Solution (Python):
import math

r = float(input())
m = r ** 2 * math.pi
l = r * 2 * math.pi

print('{:.6f} {:.6f}'.format(m, l))

Solution (Python):
from math import pi
r = float(input())

print('%.6f %.6f' % (r*r*pi,(r+r)*pi))

Solution (Python):
import math
x = input()
r = float(x)
print('%f %f'%(r * r * math.pi, 2 * r * math.pi))

Solution (Python):
import math
r = float(input())
print("{0:.6f} {1:.6f}".format(r*r*math.pi, r*2*math.pi))

Solution (Python):
import math
x=float(input())
print("{} {}".format(x*x*math.pi,2*x*math.pi))

Solution (Python):
import math
r = float(input())
print("{:7f} {:7f}".format(r * r * math.pi, 2 * r * math.pi))

Solution (Python):
import math
r = float(input())
area = r * r * math.pi
length = (r + r) * math.pi


print("{0: .6f} {1: .6f}".format(area, length))

Solution (Python):
r = float(input())
l = 2*3.141592653589793*r
a = 3.141592653589793*r*r
print('{:.6f} {:.6f}'.format(a, l))

Solution (Python):
import math
r = float(input())
p = math.pi
print("{:.6f} {:.6f}".format(p*r**2, 2*p*r))

Solution (Python):
from math import pi

r = float(input())

Area = r * r * pi
Length = 2 * r * pi

print (Area, Length)

Solution (Python):
import math

r = float(input())
a = (r ** 2) * math.pi
b = (r * 2) * math.pi
print(round(a, 6), round(b, 6))

Solution (Python):
import math
r = float(input())
print("%.6f %.6f"%(r*r*math.pi,2*math.pi*r))

Solution (Python):
import math
r = float(input())

print(math.pi*r*r, 2*math.pi*r)

Solution (Python):
import math
r = float(input())
print("%f %f" % (r * r * math.pi, 2 * math.pi * r))

Solution (Python):
import math
r = float(input())
s = math.pi * r**2
l = 2 * math.pi * r
print("{:f} {:f}".format(s, l))

Solution (Python):
import math
r=float(input())
S=float(math.pi*r*r)
L=float(2*math.pi*r)
print("{:.5f}".format(S)+" "+"{:.5f}".format(L))

Solution (Python):
import math
p = math.pi
r = float(input())

s = r*r*p
l = 2*r*p

print(s,l)

Solution (Python):
import math

r = float(input())
print(r**2*math.pi, r*2*math.pi)

Solution (Python):
import math
r = float(input())
print("{} {}".format(r * r * math.pi, 2 * r * math.pi))

Solution (Python):
import math
r = float(input())
a = math.pi * r**2
c = 2 * math.pi * r
print('%.6f' %a, end = ' ')
print('%.6f' %c)

Solution (Python):
import math

r = float(input())

print('%f %f' %(r * r * math.pi, 2 * math.pi * r))

Solution (Python):
import math
r = float(input())

print("%.10f %.10f"%(r*r*math.pi,2.0*math.pi*r))

Solution (Python):
import math
r = float(input())
print(math.pi*r*r, 2*math.pi*r)

Solution (Python):

a=float(input())
PI=3.141592653589793238
print(a*a*PI,2*a*PI)

Solution (Python):
import math
r=    float(input())
print('{:.10f}'.format(r**2*math.pi),'{:.10f}'.format( r*math.pi*2) )

Solution (Python):

r = float(input())
a=3.141592653589793

S = r*r*a
Q = 2*r*a
print("{0:6f} {1:6f}".format(S, Q))

Solution (Python):
import math
r=float(input())
print(r*r*math.pi,2*math.pi*r)

Solution (Python):
r=float(input())
import math
p=math.pi

length= r*2*p
are= r**2*p

print("%.6f %.6f"%(are,length))

Solution (Python):
import math
r = float(input())
s = (r ** 2) * math.pi
l = r * 2 * math.pi
print(s, l)

Solution (Python):
from math import pi
r = float(input())
print("{:0.6f} {:0.6f}".format(pi*r**2, 2*pi*r))

Solution (Python):
import math
r = float(input())
S = r ** 2 * math.pi
C = 2 * math.pi * r
print(round(S, 6), round(C, 6))

Solution (Python):
import math 
r = float(input())
area = math.pi * (r ** 2)
circ = 2 * r * math.pi
print(round(area, 5), round(circ, 5))

Solution (Python):
from math import pi
radius = float(input())
area = round(pi * radius**2, 6)
circumference = round(2.0 * pi * radius, 6)
print("{0} {1}".format(area, circumference))

Solution (Python):
r=input();T=3.141592653589*r;print"%.9f"%(r*T),2*T

Solution (Python):
from math import pi
r = float(input())
print(r*r*pi,  2*r*pi)

Solution (Python):
i = float(input())
print('%.6f %.6f' % (i ** 2 * 3.14159265358979323846, 2 * 3.14159265358979323846 * i))

Solution (Python):
import math
r = float(input())

print("{:.5f} {:.5f}".format(
    math.pi * r ** 2,
    2 * r * math.pi
))

Solution (Python):
from math import pi
r = float(input())
print(r*r*pi, 2*r*pi)

Solution (Python):
import math
r=float(input())
S=r*r*(math.pi)
L=2*r*(math.pi)
print('{:.20f}'.format(S) ,'{:.20f}'.format(L))

Solution (Python):
r = float(input())
from math import pi
print("{0:.10f} {1:.10f}".format(pi*r*r, 2*pi*r))

Solution (Python):
import math
r = float(input())
print(r*r*math.pi, 2*r*math.pi)

Solution (Python):
import math
PI = math.pi
r = float(input())
print(PI * (r ** 2), 2 * PI * r)

Solution (Python):
import math
r = float(input())
pi = math.pi
print("{0:.6f} {1:.6f}".format(r * r * pi, 2 * r * pi))

Solution (Python):
import math
a = float(input())
print(a**2*math.pi,a*2*math.pi)

Solution (Python):
import math

r = float(raw_input())
PI = 3.1415926535
   
s = math.pi * r * r
l = math.pi * 2.0 * r
   
print "%f %f" % (s, l)

Solution (Python):
import math

r = float(input())
a = 2 * math.pi * r
b = math.pi * r * r
print(str(b) + " " + str(a))

Solution (Python):
from math import pi
sss = input().split(' ')
r = float(sss[0])
s = r*r*pi
l = 2*r*pi
print('{0:f} {1:f}'.format(s,l))

Solution (Python):


import math

def main():

	r = float(raw_input())
	print('%f %f' % (math.pi*(r**2),2*math.pi*r))

if __name__ == "__main__":

	main()

Solution (Python):
import math
arg = float(input())
print(format(arg**2*math.pi,'.6f'),format(arg*2*math.pi,'.6f'))