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=input()

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

print('%f %f'%(area,length))

Solution (Python):
import math

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

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

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

Solution (Python):



import math

r = float(input())
S = r * r * math.pi
C = 2 * r * math.pi
print('{:.06f}'.format(S), '{:.06f}'.format(C))

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

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

a=3.141592653589

b=r*r*a
c=2*a*r

print(f'{b:2.06f} {c:2.06f}')

Solution (Python):

import math

r = float(input())

m = float(r*r*math.pi)
e = float(2*r*math.pi)

print(m,e)

Solution (Python):
import math

r = float(input())

def ensyu(r):
    return r*2*math.pi
def menseki(r):
    return r*r*math.pi
    
print("{:.6f}".format(menseki(r)),"{:.6f}".format(ensyu(r)))

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

Solution (Python):
import math

r = float(input())

l = 2 * r * math.pi
w = r * r * math.pi

print(f"{w:.5f} {l:.5f}")

Solution (Python):
import math

r = float(input())

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

Solution (Python):
a=float(input())
import math
s=a*a*math.pi
l=2*a*math.pi
print('{:.06f}'.format(s),end=' ')
print('{:.06f}'.format(l))

Solution (Python):
r = float(input())
pi = 3.14159265358979
print(pi*r**2, 2*pi*r)

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

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

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

Solution (Python):
from math import pi

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

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

Solution (Python):

r=float(input())

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

print('{0:.5f} {1:.5f}'.format(a,b))

Solution (Python):
r=float(input())
d=3.141592653589*r**2
l=2*3.141592653589*r
print(f'{d:.06f} {l:.06f} ')

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

Solution (Python):
import math

r = float(input())

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

print(area+' '+length)

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

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

S = math.pi*r**2
L = 2*math.pi*r

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

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

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

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

w = r*r*math.pi
l = 2*r*math.pi

line = "{0:.6f} {1:.6f}".format(w,l)
print(line)

Solution (Python):
import math
r = float(input())
print(f"{r*r*math.pi:.05f}",f"{2*math.pi*r:.05f}")

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

Solution (Python):
import math

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

Solution (Python):
r=float(input());s=r*3.14159265359;print(s*r,2*s)

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

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

Solution (Python):
import math


def test_case():
    r = float(input())
    area = float(r**2 * math.pi)
    circum = float(2 * r * math.pi)
    print("{0:.8f} {1:.8f}".format(area, circum))


if __name__ == "__main__":
    test_case()

Solution (Python):
import math

r = float(input())

area = math.pi * r * r

circumference = 2 * math.pi * r

print(str(area) +' ',end='')
print(str(circumference))

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

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

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

m = a*a*3.141592653589
s = a*2*3.141592653589

print(f'{m:.06f} {s:.06f}')

Solution (Python):
import math

r = float(input())

S = math.pi*r**2
l = 2*math.pi*r

print(S, l)

Solution (Python):


import math

r=float(input())

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

print(f'{s:.6f} {l:.6f}')

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

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

Solution (Python):
r = float(input())
pi = 3.141592653589
S = r*r*pi
L = 2*r*pi

print(float(S), float(L))

Solution (Python):



import math

r = float(input())
S = r * r * math.pi
C = 2 * r * math.pi
print('{:.15}'.format(S), '{:.15}'.format(C))

Solution (Python):
import math

r = float(input())
pi = round(math.pi, 15)
print('{} {}'.format(r*r*pi, 2*r*pi))

Solution (Python):
import math
r=float(input())
m=math.pi
x=2*r*m
y=r*r*m

print(f'{y:.6f}', f'{x:.6f}')

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

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

Solution (Python):
import math

r = float(input())

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

print('{} {}'.format(area, circumference))

Solution (Python):
r = float(input())
print(str(r**2 * 3.141592653589) +" " + str(r * 2 * 3.141592653589))

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

Solution (Python):
def main():
    r = float(input())
    pi = 3.141592653589
    ca = r ** 2 * pi
    cl = 2 * r * pi
    print(f"{ca:.7f} {cl:.7f}")


if __name__ == "__main__":
    main()

Solution (Python):
import math

r = float(input())


def area_cir_list(r):
    return f'{(r ** 2) * math.pi:.6f} {r * 2 * math.pi:.6f}'


x = area_cir_list(r)
print(x)

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

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

a=math.pi*r*r
b=2*math.pi*r

print(a,b)

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

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

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

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

Solution (Python):
import math

r = float(input())

X = (r * r) * math.pi
Y = (r + r) * math.pi

print("%.6f %.6f"%(X, Y))

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

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

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

Solution (Python):
import math


def main():
    r = float(input())
    area = math.pi * (r ** 2)
    circumference = 2 * math.pi * r
    print(f"{area:.5f} {circumference:.5f}")
    return 0


if __name__ == "__main__":
    main()

Solution (Python):


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

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

print("{:.10f} {:.10f}".format(pi*r*r, 2*pi*r))

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

a = math.pi*r*r
b = math.pi*2*r

print(f"{a} {b}")

Solution (Python):
import math

r=float(input())

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

Solution (Python):
r = float(input())
area = r ** 2 * 3.141592653589
outline = r * 2 * 3.14159265358
print(f'{area} {outline}')

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

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

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

Solution (Python):
import math
r=float(input())
print(f'{math.pi*r*r:5f} {2*math.pi*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('{:.6f} {:.6f}'.format(r*r*math.pi, 2*r*math.pi))

Solution (Python):
import math
r=float(input())
if 0<r<10000:
   print(f'{r*r*math.pi:.6f} {2*r*math.pi: .6f}')
else:
    pass

Solution (Python):
import math

r = float(input())
print(format(math.pi * (r ** 2), '.8f'), format(2 * math.pi * r, '.8f'))

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

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

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

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

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

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

Solution (Python):
from math import pi


r=float(input())


a=float(r*r*pi)
b=float(2*pi*r)

print('{:.6f}'.format(a),end=' ')
print('{:.6f}'.format(b))

Solution (Python):
r = float(input())
x = 3.141592653589793238*r*r
y = 3.141592653589793238*r*2
print("{0:.5f} {1:.5f}".format(x,y))

Solution (Python):
from math import pi
r=float(input())
if 0<r<10000:
    print('{:.6f}'.format(r*r*pi),'{:.6f}'.format(2*r*pi))
else:
    pass

Solution (Python):
from math import pi
r=float(input())
if 0<r<10000:
    print('{:.6f}'.format(r**2*pi),'{:.6f}'.format(r*2*pi))
else:
    pass

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

Solution (Python):
r=float(input())
p=3.141592653589
print(f'{r*r*p:9.6f} {2*p*r:9.6f}')

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

Solution (Python):
import math

r = float(input())

S = math.pi * r ** 2
L = math.pi * r * 2

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

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

Solution (Python):


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

Solution (Python):
import math

r = float(input())

p = math.pi

s = p*r*r

l = 2 * p * r

print(s,l)

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

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

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

Solution (Python):
import math

r = float(input())

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

Solution (Python):
import math


def circle(r):
    return r * r * math.pi, 2 * r * math.pi


if __name__ == '__main__':
    r = float(input())
    s, d = circle(r)
    print('{:.5f}'.format(s), '{:.5f}'.format(d))

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

Solution (Python):
import math

r = float(input())
print(f"{math.pi*r*r:.5f} {math.pi*r*2.0:.5f}")

Solution (Python):
from math import pi

r = float(input())


def circle_length(r):
    return 2 * pi * r


def circle_area(r):
    return pi * r ** 2


length = round(circle_length(r), 6)
area = round(circle_area(r), 6)

print(area, length)

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

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

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

Solution (Python):
import math


def mennseki(r):
    S = r ** 2 * math.pi
    return S


def ennsyuu(r):
    R = 2 * r * math.pi
    return R


r = float(input())
print(mennseki(r), ennsyuu(r))

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

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

Solution (Python):
import math

r = float(input())

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

print("{:.06f} {:.06f}".format(area, l))

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

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


area =round(r**2*math.pi,6)
circle=round(2*r*math.pi,6)
print(area,end=' ')
print(circle)

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 = 3.141592653589

print('{0:.10f} {1:.10f}'.format(pi*r*r, 2*pi*r))

Solution (Python):
import math

r = float(input())


def area(x):
    return x ** 2 * math.pi


def circum(x):
    return x * 2 * math.pi


S = area(r)
R = circum(r)

print(f"{S:.6f} {R:.6f}")

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

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

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 = math.pi * r ** 2
L = math.pi * 2 * r
print('%.5f' % S,'%.5f' % L)

Solution (Python):
a = float(input())
pi = 3.141592653589
print(f"{a * a * pi} {a * 2 * pi}")

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())

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

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

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

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

Solution (Python):
import math

r = float(input())

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

print('%.5f %.5f' %(area, circum))

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

Solution (Python):
import math

r = float(input())
print('{:.05f}'.format(r * r * math.pi), '{:.05f}'.format(r * 2 * math.pi))

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

pie = 3.141592653589

print('{:.6f} {:.6f}'.format(r ** 2 * pie, 2 * r * pie))

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

pi=3.1415926535897932384626433832795

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

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

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

Solution (Python):
pi = 3.141592653589
r = float(input())
print("{0:.10f} {1:.10f}".format(pi*r**2, 2*pi*r))

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

S=r*r*3.141592653589

l=2*r*3.141592653589

print(f"{S:.6f} {l:.6f}")

Solution (Python):
i = input()
x = float(i) * float(i) * 3.141592653589
y = (float(i) + float(i)) * 3.141592653589
print("{:.6f}".format(x) + " " + "{:.6f}".format(y))

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

area = '{:.5f}'.format(r * r * 3.141592653589)
length = '{:.5f}'.format(2 * r * 3.141592653589)

print(area, length)

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

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

Solution (Python):


import math
r=float(input())

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

Solution (Python):
import math

r = float(input())

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

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

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

menseki = r * r * 3.141592653589
ensyuu = 2 * r * 3.141592653589

print(menseki , ensyuu)

Solution (Python):
import math
base = input("")
a = float(base)

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

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

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

Solution (Python):
import math
x = float(input())
print("%.6f %.6f"%(x*x*math.pi,2.0*x*math.pi))

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

Solution (Python):
r = float(input())
print(round(r*r*3.141592653589,6),round(r*2*3.141592653589,6))

Solution (Python):
import math
r = float(input())
s = r * r * math.pi
c = 2 * r * math.pi
print(format(s, '0.6f'), format(c, '0.6f'))

Solution (Python):
import math

pi = math.pi

r = float(input())

S = r * r * pi
R = 2 * pi * r

print(S, R)

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

Solution (Python):

r = float(input())
surface = r**2*3.141592653589
syuu = 2*3.141592653589*r
print(surface,syuu)

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

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

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

Solution (Python):
import math

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

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

import math

S = math.pi * r**2
L = math.pi * 2 * r

print(S, L)

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

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

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

Solution (Python):
import math

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

x = r*r*pi
y = 2*r*pi

print("{:.6f}".format(x), "{:.6f}".format(y))

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**2*math.pi,r*math.tau)

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

r = float(input())

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

print(s,l)

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

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

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
area = pi * r ** 2
length = 2 * pi * r
print(f'{area:.5f} {length:.5f}')

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

Solution (Python):
import math

r = float(input())

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

print(area, diameter)

Solution (Python):
import sys
r=input()
S=r*r*3.141592653589
L=2*r*3.141592653589
print(str('{:.06f}'.format(S))+' '+str('{:.06f}'.format(L)))

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

Solution (Python):
from math import pi


r = float(input())

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

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

S = pai*r*r
L = 2*pai*r
print("{0:.5f} {1:.5f}".format(S, L))

Solution (Python):
import math

r = float(input())
area = math.pi * r ** 2
circum = 2 * math.pi * r

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

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

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



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

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

print("%F %F"%(r*r*pi, 2*r*pi))

Solution (Python):
pi = 3.141592653589793
r = float(input())
print(round(pi*r*r, 6), round(2*pi*r, 6))

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

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

Solution (Python):
r= float(input())
import math
area=r*r*math.pi
circle=2*r*math.pi

print(area,circle)

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

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

print(s,l)

Solution (Python):
import math

r = float(input())

a = math.pi * r ** 2
b = 2 * math.pi * r

print('{:.6f} {:.6f}'.format(a, b))

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

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

Solution (Python):
import math
r=float(input())
pi=math.pi
area=round(pi*r*r,12)
length=round(pi*2*r,12)
print(area,length)

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

Solution (Python):
import math

r = float(input())

print(round(r*r*math.pi,5),round(2*r*math.pi,5))

Solution (Python):
import math

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

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

pi = 3.141592653589793
s = r * r * pi
t = 2 * r * pi

print(s, t)

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

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

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

Solution (Python):
r=float(input())
print("{:.10f} {:.10f}".format(r*r*3.141592653589793238,r*2*3.141592653589793238))

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

Solution (Python):
import math

r = float(input())
pi = math.pi
s = pi*r**2
c = 2*pi*r

print(f"{s:.5f} {c:.5f}")

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

Solution (Python):
from math import pi

r = input()

try:
    r = int(r)
except:
    r = float(r)

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

Solution (Python):
p = 3.141592653589
r = float(input())
print(r*r*p, '{:.8f}'.format(2*r*p))

Solution (Python):
import math

r = float(input())

x = r * r* math.pi
y = 2 * r * math.pi

print(f"{x:.6f} {y:.6f}")

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

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

Solution (Python):
import math

r = float(input())
rs = r * r * math.pi
r_r = 2 * r * math.pi

print(rs, r_r)

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

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

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

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

Solution (Python):
import math

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

print('{:.6f} {:.6f}'.format(r**2*pi, 2*r*pi))

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

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

Solution (Python):
import math

r = float(input())

a = r * r * math.pi
b = 2 * r * math.pi

print("{} {}".format(a,b))

Solution (Python):
import math

r = float(input())

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

print('{:.6f} {:.6f}'.format(area, circ))

Solution (Python):
import math
import copy
from copy import deepcopy
import sys
import fractions

from functools import reduce

import decimal
import heapq
import collections
import itertools
sys.setrecursionlimit(100001)






def getInputInt():
    inputNum = int(input())
    return inputNum


def getInputListInt():
    outputData = []
    inputData = input().split()
    outputData = [int(n) for n in inputData]

    return outputData


def getSomeInputInt(n):
    outputDataList = []
    for i in range(n):
        inputData = int(input())
        outputDataList.append(inputData)

    return outputDataList


def getSomeInputListInt(n):
    inputDataList = []
    outputDataList = []
    for i in range(n):
        inputData = input().split()
        inputDataList = [int(n) for n in inputData]
        outputDataList.append(inputDataList)

    return outputDataList




r = float(input())

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

print("{:.5f}".format(area), "{:.5f}".format(len))

Solution (Python):
n = 3.14159265358979323846264338327950288419716939937510

s = float(input())
a = s**2 * n
b = s*2*n
print(round(a,6),round(b,6))

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

Solution (Python):
PI = 3.141592653589

r = float(input())

area = r * r * PI
Circumference = r * 2 * PI

print('{:.6f}'.format(area), '{:.6f}'.format(Circumference))

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

Solution (Python):

a = float(input())
pi = 3.141592653589
print(a*a*pi,a*2*pi)

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

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

Solution (Python):
r = float(input())
pi = 3.1415926535897932384626433832795

L = 2*r*pi
M = r*r*pi

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

Solution (Python):
from math import pi
from decimal import Decimal, ROUND_HALF_UP, ROUND_HALF_EVEN

r = float(input())

l = 2 * r * pi
s = r ** 2 * pi
t = Decimal(str(l)).quantize(Decimal('0.000001'), rounding=ROUND_HALF_UP)
u = Decimal(str(s)).quantize(Decimal('0.000001'), rounding=ROUND_HALF_UP)
print(str(u) + " " + str(t))

Solution (Python):
import math

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

Solution (Python):
r=float(input())
p=3.141592653589
men=r*r*p
shu=2*r*p
print(f"{men:.5f} {shu:.5f}")

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

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

v = r*r*3.141592653589
cir = r*2*3.141592653589

print("%f %f"%(v, cir))

Solution (Python):
import math

r=float(input())

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

print(area)
print(circle)

Solution (Python):
import math

r = float(input())
print('{:.6f}'.format(r*r*math.pi), '{:.6f}'.format(2.0*math.pi*r))

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

Solution (Python):
import math
r=float(input())
c=round(math.tau*r,6)
a=round(math.pi*r*r,6)
print(a,c,sep=" ")

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

Solution (Python):
import math
a = float(input())
print("%.8f %.8f" %(a*a*math.pi,a*2.0*math.pi))

Solution (Python):
import math

r = float(input())

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

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

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

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

Solution (Python):
import math
r = float(input())
ans1 = 2 * math.pi * r
ans2 = math.pi * r * r
print("{0:.10f}".format(ans2), "{0:.10f}".format(ans1))

Solution (Python):
import math
r = float(input())
print("{:.8f}".format(math.pi * r * r) + " " + "{:.8f}".format(r * 2 * math.pi))

Solution (Python):

import math

r = float(input())

circumference = 2 * math.pi * r
circle_area = math.pi * (r**2)

print("%f %f"%(circle_area, circumference))

Solution (Python):
import math

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

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

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

Solution (Python):
import math

input_value = input()

r = float(input_value)

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

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

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

Solution (Python):
from math import pi

a = float(input())

x = a*a*pi
y = a*2*pi

print("{} {}".format(x,y))

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

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

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

Solution (Python):
r = float(input())
pai = 3.141592653589
S = r*r*pai
R = 2*r*pai
print(f"{S:.8f} {R:.8f}")

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

Solution (Python):
import math

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

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

Solution (Python):
import math

r = float(input())

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

print("%f %f" %(area, circ))

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

a = math.pi*(r*r)
c = math.pi*(r*2)

print("%.6f %.6f" %(a,c))

Solution (Python):
import math

r = float(input())

a = math.pi * r * r
c = math.pi * r * 2

print("%.6f %.6f" %(a,c))

Solution (Python):
r=float(input())
m=(r*r)*3.14159265358979323846
n=(r+r)*3.14159265358979323846
print('{0} {1}'.format(m,n))

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

print(round(r*r*3.141592653589, 7), round(2*r*3.141592653589, 7))

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

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

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

Solution (Python):
import math

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

if __name__ == "__main__":
  main()

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

pi = 3.141592653589

area = a ** 2 * pi
c = a * 2 * pi

print(f"{area:.5f} {c:.5f}")

Solution (Python):
import math
r = float(input())
print(str(float(r ** 2 * math.pi * 10000000) / 10000000) + " " + str(float(r * 2 * math.pi * 10000000) / 10000000))

Solution (Python):
from math import pi

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

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

Solution (Python):
r = float(input())
menseki = r ** 2 * 3.14159265358979
enshu = 2 * r * 3.14159265358979
print("{0:.5f} {1:.5f}".format(menseki, enshu))

Solution (Python):
pi = 3.14159265358979
r = float(input())
print('{:.10f} {:.10f}'.format(pi * r * r, 2 * pi * r))

Solution (Python):
import math

r = float(input())

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

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

Solution (Python):



import math

r = float(input())
area = math.pi * r * r
circ = 2.0 * math.pi * r
print("{:.10f} {:.10f}".format(area, circ))

Solution (Python):
a = float(input())
en = float(3.141592653589)
print("%f %f"%(a * a * en, (a + a) * en))