#!/usr/bin/python

import re
import sys

line = sys.stdin.readline()
print repr(line)
assert re.match('^[1-9][0-9]*\n$', line)
n = int(line)
assert 0 < n <= 20

unique_names = set()
for _ in range(n):
    line = sys.stdin.readline()
    print repr(line)
    assert re.match('^{0} {0} {1}\n'.format('(-?[1-9][0-9]*|0)', '[a-zA-Z]{1,25}'), line)
    x, y, name = line.split()
    assert -100 <= int(x) <= 100
    assert -100 <= int(y) <= 100
    unique_names.add(name)

assert len(unique_names) <= 15
assert sys.stdin.readline() == ''

sys.exit(42)