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# Author: Bartek Knapik

n = int(input())

finalists = [None for _ in range(n)]

for i in range(n):
    yn, cnt = input().split()
    yn = True if yn == 'TAK' else False
    cnt = int(cnt)
    finalists[i] = (yn, cnt)

top10 = 10
bottom10 = 10
pos = 1

ans = []
while top10:
    candidate = finalists.pop(0)
    if candidate[0]:
        top10 -= 1
        ans.append(pos)
    pos += 1

while bottom10:
    candidate = finalists.pop(0)
    if candidate[0] and candidate[1] < 2:
        bottom10 -= 1
        ans.append(pos)
    pos += 1

print(" ".join(str(el) for el in ans))