def main():
    import sys
    input = sys.stdin.read().split()
    idx = 0
    N = int(input[idx])
    idx += 1
    Q = int(input[idx])
    idx += 1
    queries = []
    for _ in range(Q):
        cmd = input[idx]
        if cmd == 'C':
            y = int(input[idx+1])
            z = int(input[idx+2])
            queries.append((cmd, y, z))
            idx += 3
        else:
            y = int(input[idx+1])
            z = int(input[idx+2])
            queries.append((cmd, y, z))
            idx += 3
    L = N - 1
    groups = []
    current_time = 0

    for query in queries:
        current_time += 1
        if query[0] in ('L', 'R'):
            t0 = current_time
            y0 = query[1]
            direction = query[0]
            z = query[2]
            groups.append((t0, y0, direction, z))
        else:
            y_start, y_end = query[1], query[2]
            count = 0
            for (t0, y0, dir_, z) in groups:
                d = current_time - t0
                if dir_ == 'R':
                    steps_right = L - y0
                    if d <= steps_right:
                        x = y0 + d
                    else:
                        rem = d - steps_right
                        if rem == 0:
                            x = L
                        else:
                            rem -= 1
                            if rem <= L:
                                x = L - rem
                            else:
                                rem = (rem - 1) % (L + 1)
                                x = L - rem
                else:
                    steps_left = y0
                    if d <= steps_left:
                        x = y0 - d
                    else:
                        rem = d - steps_left
                        if rem == 0:
                            x = 0
                        else:
                            rem -= 1
                            if rem <= L:
                                x = rem
                            else:
                                rem = (rem - 1) % (L + 1)
                                x = rem
                if y_start <= x < y_end:
                    count += z
            print(count)

if __name__ == "__main__":
    main()