# This program finds the largest among 4 data
# using only two variables
lrgst = input("Enter the 1st data: ")
data = input("Enter the next data: ")
if data > lrgst: lrgst = data
data = input("Enter the next data: ")
if data > lrgst: lrgst = data
data = input("Enter the next data: ")
if data > lrgst: lrgst = data
print "Largest data is: ", lrgst