x = 111213123
y = x
print(y is x)

for x in range(1000000, 10000000):
    y = x
    if not y is x:
        print(x)

m = [1, 2, 3, 4, 5]
n = m
print(m is n)
m = [1, 2, 3]
print(n)
print(n is m)