import sys
    
if __name__=='__main__':
    n = int(sys.stdin.readline().strip())
    r = []
    for ix in range(n):
        s, x = sys.stdin.readline().strip().split(' ')
        if s == "TAK" and ((len(r) < 10) or (int(x) < 2)):
            r.append(str(ix+1))
            if len(r) == 20:
                break
    print(" ".join(r))

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import sys
    
if __name__=='__main__':
    n = int(sys.stdin.readline().strip())
    r = []
    for ix in range(n):
        s, x = sys.stdin.readline().strip().split(' ')
        if s == "TAK" and ((len(r) < 10) or (int(x) < 2)):
            r.append(str(ix+1))
            if len(r) == 20:
                break
    print(" ".join(r))