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n = int(input())
i = 1
res = []
while i <= n:
    _ = input()
    s, x = _.split(" ")[0], int(_.split(" ")[1])
    if s == 'TAK':
        if len(res) < 10:
            res.append(str(i))
        elif x < 2 and len(res) < 20:
            res.append(str(i))
    i +=1

print(" ".join(res))