Rock Paper Scissors

print '***ROCK PAPER SCISSORS***'

pl1 = raw_input("Enter Player 1's choice (rock, paper or scissors): ")
pl1 = pl1.lower() # convert input into lower case

# Making sure the input is valid
if pl1 == 'rock' or pl1 == 'paper' or pl1 == 'scissors':
    print 'Player 1: ' + pl1
else:
    print 'Invalid input'

pl2 = raw_input("Enter Player 2's choice: ")
pl2 = pl2.lower() # convert input into lower case
# Making sure the input is valid
if pl2 == 'rock' or pl2 == 'paper' or pl2 == 'scissors':
    print 'Player 2: ' + pl2
else:
    print 'Invalid input'
if pl1 == 'rock' and pl2 == 'rock':
    print 'Tie'
elif pl1 == 'rock' and pl2 == 'scissors':
    print 'Player 1 wins'
elif pl1 == 'rock' and pl2 == 'paper':
    print 'Player 2 wins'
elif pl1 == 'paper' and pl2 == 'rock':
    print 'Player 1 wins'
elif pl1 == 'paper' and pl2 == 'scissors':
    print 'Player 2 wins'
elif pl1 == 'paper' and pl2 == 'paper':
    print 'Tie'
elif pl1 == 'scissors' and pl2 == 'rock':
    print 'Player 2 wins'
elif pl1 == 'scissors' and pl2 == 'scissors':
    print 'Tie'
elif pl1 == 'scissors' and pl2 == 'paper':
    print 'Player 1 wins'