#x = 0
#while True:
#    x += 1
#    print x

x=0
while x<100:
    x+=1 #equivalent to x=x+1, x++ in some languages
    print x

print "Please enter your birth year"    
birth_year = int(raw_input())
while not (1895 < birth_year < 2012):
    print '''Your birth year is outside of what is known to be humanly possible. Please enter a realistic one.'''
    birth_year=int(raw_input())