22.2/main.cpp


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#include <cstdio>
using namespace std;

int
main()
{
	char move, res;
	long total = 0;
	while (scanf("%c %c ", &move, &res) == 2) {
		move -= 'A';
		res -= 'X';
		if (!(0 <= move && move < 3)) throw "bad input";
		if (!(0 <= res && res < 3)) throw "bad input";

		int outcome = (res - move + 4) % 3; /* 0 loss, 1 draw, 2 win */
		long score = outcome * 3 + res + 1;
		total += score;
	}
	printf("%ld\n", total);
}