import shared

R = "A"
P = "B"
S = "C"

X = "X"  # lose
Y = "Y"  # tie
Z = "Z"  # win

Moves = {
    R: {X: S, Y: R, Z: P},
    P: {X: R, Y: P, Z: S},
    S: {X: P, Y: S, Z: R},
}

Scores = {
    R: 1,
    P: 2,
    S: 3,
    X: 0,
    Y: 3,
    Z: 6,
}


def run(moves):
    score = 0
    for o, a in moves:
        score += Scores[Moves[o][a]] + Scores[a]
    print(score)


def main():
    rows = [row.rstrip().split() for row in shared.load(2)]
    run(rows)


if __name__ == "__main__":
    main()