import sys
from collections import defaultdict

try:
    import mydebug

    def dprint(*objects):
        print(*objects)
except:
    def dprint(*objects, sep='', end='\n'): pass

n = int(input())
l = [0, 0, 0, 0]
dic = defaultdict(int)
for i in range(1, 10):
    dic[i] = 0
for i in range(n):
    a, b, c, d, r = input().split()
    dprint(a,b,c,d,r)
    if "YES" in r:
        diff = 1
    else:
        diff = -1
    dic[int(a)] += diff
    dic[int(b)] += diff
    dic[int(c)] += diff
    dic[int(d)] += diff

maxn = -20000000
ans = -2000
for k, v in dic.items():
    if maxn < dic[k]:
        maxn = dic[k]
        ans = k

print(ans)