#!/usr/bin/env python3

INPUT_FILE = 'input'

# x = rock
# y = paper
# z = scissor

# lose = 0
# draw = 3
# win = 6

def main():
    score = 0
    content = map(str.strip, open(INPUT_FILE, 'r').readlines())
    for line in content:
        enemy_move, my_move = map(ord, line.split(' '))
        enemy_move -= 64
        my_move -= 24 + 63
        print(enemy_move, my_move)
        if my_move == enemy_move + 1 or (my_move == 1 and enemy_move == 3):
            score += 6
        elif my_move == enemy_move:
            score += 3
        score += my_move

    print(score)

if __name__ == '__main__':
    main()