#
# global x
#
# x = 10
#
# def func(x):
#     print('x is :', x)
#     x = 11
#     print('changed local x to', x)
#     print('x is', x)

if __name__ == '__main__':
    pass
#     n1 = ['a', 'b']
#     n2 = [1, 2]
#     print(dict([n1, n2]))
#
#     func(123)
#
#     print('x is ',x)
    # nums = [0, 1, 4, 9, 16, 25, 36, 49, 64, 81]
    # print(nums[6:4:-1])
    # a = 3.6678
    # print('%.3f' % a)
    # t1 = [1, 2, 3]
    # print(t1[-1::])
    # print(t1[::-1])
    # print(t1[::])
    # print(eval("%s*%s*%s*%s" % (7, 7, 7, 7,)))
    # import math
    #
    #
    # def add(x, y, f):
    #     return f(x) + f(y)
    #
    #
    # print(add(25, 9, math.sqrt))
    # nums=list(range(6))
    # print(range(6))
    # print(nums[4])
    # list1=[[]]*3
    # list1[0].append(1)
    # list1[1].append(2)
    # list1[2].append(3)
    # print(list1)
    #     print('''line1
    # line2
    # line3''')
    # print(r'''hello,\n
    # world''')
    # print('%03d-%02d' % (3, 1))
    # print('%.2f' % 3.1415926)
