import math as m
from matplotlib import pyplot as plt

th0 = float(raw_input())
l=float(raw_input())

g=9.807
print l
print th0


def wi(wold,ths,dt) : wold - g/l*m.sin(ths*(m.pi/180))*dt
def thi(thold, wold, dt) : thold + wold*dt

print wi(0,th0,0.1)
thetas=[]
omegas=[]

w=0
th=th0
for i in range(20):
    thetas.append(th)
    w=wi(w,th,0.1)
    th=(th,w,0.1)

w = 0
th = th0
for i in range(20):
    omegas.append(w)
    w=wi(w,th,0.01)
    th=(th,w,0.01)

print thetas
print omegas