x = 5
y = x
x += 3
print(x, y)

x = 'abc'
y = x
x += 'def'
print(x, y)

x = (1,2,3)
y = x
x += (4,5,6)
print(x, y)

x = [1,2,3]
y = x
x += [4,5,6]
print(x, y)