849 B | 849 chars
import sys
from math import sqrt, pi, sin, factorial
from decimal import *
inp = input
# inp = lambda : sys.stdin.readline()[:-1].strip()
mii = lambda x = " " : [*map(int,inp().split(x))]
mfi = lambda x = " " : [*map(float,inp().split(x))]
ii = lambda : int(inp())
fi = lambda : float(inp())
p = print
def f(x, y):
s = "RSPR"
for i in range(3):
if x == s[i] and y == s[i + 1]:
return True
return False
def solve():
while 1:
a = input()
b = input()
if a == b == "E":
break
cnt = [0,0]
for i in range(len(a)):
x = a[i]
y = b[i]
if x == y:
continue
if f(x, y):
cnt[0] += 1
else:
cnt[1] += 1
p("P1:", cnt[0])
p("P2:", cnt[1])
if __name__ == "__main__":
tc = 1
for t in range(1, tc+1):
ret = solve()