a = 0
print(a)
b = 1
print(b)
c = a + b
print(c)
d = b + c
print(d)
e = c + d
print(e)
f = d + e
print(f)
g = e + f
print(g)
h = f + g
print(h)
i = g + h
print(i)
j = h + i
print(j)
k = i + j
print(k)
l = j + k
print(l)