from numbers import Number

__author__ = 'fengjigang'

# a,b = 1,Number()
#
# if(a == b):
#     print  '=='
# else:
#     print 'xxx'

# i = 1
# while i <= 7:
#     print i
#     i+=1
# else:
#     print 'end'
#
#
# while 1:print 'ss'

# for letter in 'pyhton':
#     print letter

# students = ['a','b','c','d']
# for student in students:
#     print student
# for index in range(len(students)):
#     print students[index]


for index in range(10,20):
    print index