def main():
    d_no = 0
    max_point = 0
    N = int(input())
    for i in range(N):
        G, D = map(int, input().split())
        point = G - 30000 * D
        if point > max_point:
            max_point = point
            d_no = i + 1
    total_point = max_point * 6
    if total_point >= 30000 * 100:
        for i in range(6):
            print(d_no)
    else:
        print("NO")


if __name__ == '__main__':
    main()