Assign a constant named year with the value 2050.
edit the statement mynewage = mycurrentage + (2050 − currentyear) so it uses the constant named year.
edit the statement print("i will be" + str(mynewage) + "in 2050.") so it uses the constant named year.
execute the program and verify that the output is correct.

# this program calculates your age in the year 2050.
# input: none
# output: your current age followed by your age in 2050

mycurrentage = 29
currentyear = 2016

mynewage = mycurrentage + (2050 - currentyear)
print("my current age is " + str(mycurrentage))
print("i will be " + str(mynewage) + " in 2050.")