Untitled

n = int(input())
ma1 = 0
ma2 = 0
ma3 = 0
k = 0
mas = ['', '', '']
for i in range(n):
    a, b, school, balls = input().split()
    balls = int(balls)
    if school == 50:
        if balls >= ma1:
            ma3 = ma2
            ma2 = ma1
            ma1 = balls
            mas[2] = mas[1]
            mas[1] = mas[0]
            mas[0] = str(a)+str(b)
        elif balls >= ma2:
            ma3 = ma2
            ma2 = balls
            mas[2] = mas[1]
            mas[1] = str(a)+str(b)
        elif balls >= ma3:
            ma3 == balls
            mas[2] = str(a)+str(b)
        if balls == ma1:
            k += 1
        if balls > ma1:
            k = 0
if ma1 == ma2 and ma2 == ma3:
    print(k)
if ma1 != ma2 and ma2 == ma3:
    print(mas[0])
if ma2 != ma3 and ma1 == ma2:
    print(mas[0])
    print(mas[1])
print(mas)