for i in range(int(input())):
    f, s, t, count, point = 0, 0, 0, 0, 0
    while count != 3:
        data = input()
        if data == 'HIT':
            if t == 1:
                point += 1
                t = 0
            if s == 1:
                t = 1
                s = 0
            if f == 1:
                s = 1
            f = 1
        elif data == 'OUT':
            count += 1
        elif data == 'HO' \
                   '' :
            point += f + s + t + 1
            f, s, t = 0, 0, 0
    print(point)