Rock, Paper, Scissors

Description:

Rock, Paper, Scissors is a classic hand game for two people. Each participant holds out either a fist (rock), open hand (paper), or two-finger V (scissors). If both players show the same gesture, they try again. They continue until there are two different gestures. The winner is then determined according to the table below:
 
Rock beats Scissors   
Paper beats Rock   
Scissors beats Paper 
Your task is to take a list of symbols representing the gestures of two players and determine how many games each player wins.
In the following example:

Turn     : 1 2 3 4 5
Player 1 : R R S R S
Player 2 : S R S P S
Player 1 wins at Turn 1 (Rock beats Scissors), Player 2 wins at Turn 4 (Paper beats Rock), and all the other turns are ties.

Input:

The input contains between 1 and 20 pairs of lines, the first for Player 1 and the second for Player 2. Both player lines contain the same number of symbols from the set {'R', 'P', 'S'}.  The number of symbols per line is between 1 and 75, inclusive.  A pair of lines each containing the single character 'E' signifies the end of the input.

Output:

For each pair of input lines, output a pair of output lines as shown in the sample output, indicating the number of games won by each player.

Sample Input:

RRSRS
SRSPS
PPP
SSS
SPPSRR
PSPSRS
E
E

Sample Output:

P1: 1
P2: 1
P1: 0
P2: 3
P1: 2
P2: 1

Note:

本题由旧版NOJ导入，来源：ACM Mid-Central Regional 2009