What is wrong with my code?

general
1

PROBLEM CODE :TLG
MY CODE:

cook your dish here

a=int(input())

list1=[]

list2=[]

list3=[]

total1=0

total2=0

for i in range(0,a):

e,f=map(int,input().split())

list1.append(e)

list2.append(f)

for m in range(0,len(list1)):

total1=total1+list1[m]

for n in range(0,len(list2)):

total2=total2+list2[n]

if(total1>total2):

hi=total1

else:

hi=total2

for p in range (a):

c=list1[p]-list2[p]

list3.append(c)

list3.sort()

print(hi,max(list3))