n = int(input())
prefer = input()

bi = 0
bt = 0
ba = 0
bs = 0


for i in range(n):
    a, s = map(int, input().split())
    if bt > a + s:
        continue
    elif bt == a + s and prefer == "antal" and a > ba:
        bi = i + 1
        ba = a
        bs = s
    elif bt == a + s and s > bs:
        bi = i + 1
        ba = a
        bs = s
    elif bt < a + s:
        bi = i + 1
        bt = a + s
        ba = a
        bs = s
print(bi)