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# FINALIŚCI

n = int(input())

top20 = 0
finalists = []

for i in range(1, n + 1):
    s, x = [x for x in input().split()]
    x = int(x)

    if s == 'TAK':
        if top20 < 10:
            finalists += [i]
            top20 += 1
        elif top20 < 20 and x < 2:
            finalists += [i]
            top20 += 1

for x in finalists:
    print(x, end=' ')
print()