from math import sqrt, sin, cos, radians

def tanf(a):
    return round( sqrt( (1-cos(2*a)) / (1+cos(2*a)) ), 4)

def tanf5(angle):
    
    ar = radians(angle)
    ar1 = tanf(ar)
    ar2 = tanf(ar1)
    ar3 = tanf(ar2)
    ar4 = tanf(ar3)
    ar5 = tanf(ar4)
    return ar1, ar2, ar3, ar4, ar5