a,b = map(int,input().split())
b //=1000
l = []
s = []
for i in range(a):
    l.append([int(x) for x in input().split()])
for i in l:
    if i[1]<=29:
        s.append(i[0]+b*10)
    elif i[1]<=39:
        s.append(i[0]+b*50)
    else:
        s.append(i[0]+b*100)
maxs = [0,0]
for i in range(a):
    if s[i] > maxs[1]:
        maxs[1]=s[i]
        maxs[0]=i+1
print(*maxs)