N = int(input())

taro_num = []

for n in range(N):
    taro_num.append(input().split())

jiro_pre = [0, 0, 0, 0, 0, 0, 0, 0, 0, 0]

for n in range(N):
    if (taro_num[n][4] == 'YES'):
        for i in taro_num[n][:4]:
            jiro_pre[int(i)] += 1
    else:
        for j in taro_num[n][:4]:
            jiro_pre[int(j)] -= 1

print(jiro_pre.index(max(jiro_pre)))