m = int(input())
def countdown(n):
    if n<=0:
        print("Blastoff")
    else:
        print(n)
        countdown(n-1)

def countup(n):
    if n>=0:
        print("Blastoff")
    else:
        print(n)
        countup(n+1)

if m > 0:
    countdown(m)
else:
    countup(m)