const std = @import("std");

const mem = std.mem;
const fmt = std.fmt;

const print = std.debug.print;

const input = @embedFile("input");

pub fn main() !void {
    var total_points: u32 = 0;
    // Split the input
    var input_iter = mem.split(u8, input, "\n");
    while (input_iter.next()) |line| {
        // Input ends with an empty line
        if (line.len == 0) continue;
        // Converting character code to points
        const op = line[0] -| 'A';
        const me = line[2] -| 'X';

        // A   3   1   2
        // B   1   2   3
        // C   2   3   1
        //     X   Y   Z

        // This works, OK? Trust me bro
        total_points += ((me + op + 2) % 3) + 1 + (me * 3);
    }
    print("{}\n", .{total_points});
}