m=[[0]*2]*7

for i in range(7):

m[i]=input().split(" ")

d=[0]*7

for a in range(7):

d[a]=m[a][0]+m[a][1]

b=max(d)

for l in range(7):

if d[l] == b:

    print(l+1)

    break

得50分，求指导