from math import sin
n = int(input())
seq = 1
summ = 0
while seq <= n:
summ += (1/sin(seq))
seq += 1
print(summ)
from math import sin
n = int(input())
seq = 1
summ = 0
while seq <= n:
summ += (1/sin(seq))
seq += 1
print(summ)