from math import sin, cos, radians, sqrt

theta0 = input() 
theta0 = radians(theta0)

theta1 = input()
theta1 - radians(theta1)

#print theta

x = input()
y = input()

iter = input()

z = complex(x,y)

print z.real, z.imag

for i in range(1,iter):
    theta = (1-(i%2))*theta0 + (i%2)*theta1
    z1 = (cos(theta)*z-sin(theta))/(sin(theta)*z+cos(theta))
    print z1.real, z1.imag
    z =z1