Task 5.2

import math
a,b,c = input().split()
l1 = input().split()
# list1 = l1.split()
l2 = input().split()
# list2 = l2.split()
l3 = input().split()
# list3 = l3.split()


# p1= (len(list1) - 1)
# p2 = (len(list2) - 1)
# p3 = (len(list3) - 1)


# satck1 = []
# satck2 = []
# satck3 = []
sum1 = 0
sum2 = 0
sum3 = 0

for i in range(len(l1)):
#   var  = int(list1[p1])
#   satck1.append(int(var))
#   p1 = p1-1
  sum1 = sum1 + int(l1[j])

for j in range(len(l2)):
#   var  = int(list2[p2])
#   satck2.append(var)
#   p2 = p2-1
  sum2 = sum2 + int(l2[j])

for k in range(len(l3)):
#   var  = int(list3[p3])
#   satck3.append(var)
#   p3 = p3-1
  sum3 = sum3 + int(l3[j])



while sum1 != sum2 and sum1 != sum3:
    if sum1>=sum2 and sum1>=sum3:
        sum1-=int(l1[0])
        l1.pop(0)
    elif sum2>=sum1 and sum2>=sum3:
        sum2-=int(l2[0])
        l2.pop(0)
    elif sum3>=sum1 and sum3>=sum2:
        sum3-=int(l3[0])
        l3.pop(0)
#   if(sum1>=sum2):
#     if(sum1>sum3):
#       satck1.pop()
#       sum1 = sum(satck1)
#     if(sum1<sum3):
#       satck3.pop()
#       sum3 = sum(satck3)
#   else:
#     if(sum2>sum3):
#       satck2.pop()
#       sum2 = sum(satck2)
#     if(sum3>sum2):
#       satck3.pop()
#       sum3 = sum(satck3)


print(sum1)