x = 34      # Variable x is assigned value 34
print(x)
x = 90      # Variable x is assigned value 90
print(x)

y = x + 40  # y is assigned x + 40 which is 90 + 40, or 130
print(x)    # Still 90! Nothing changed here
print(y)    # Prints "130"

x = 1000
print(y)    # Still 130!