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#!/usr/bin/env python3
# -*- coding: utf-8 -*-
"""
Created on Mon Mar 10 16:13:06 2025

@author: ania
"""
import sys

n = int(input())
count = 0
ans = []

for i, line in enumerate(sys.stdin):
    s, x = line.split()
    x = int(x)
    if len(ans)<10 and s=="TAK":
        ans.append(i+1)
    elif len(ans)<20 and s=="TAK" and x<2:
        ans.append(i+1)
    if len(ans)==20:
        break

for val in ans:
    print(val, end =" ")
print('')