Mock Exam 4: Greater Number

output = []

lst1 = input().split(',')
lst2 = input().split(',')

for i in range(len(lst1)):
    lst1[i] = int(lst1[i])

for i in range(len(lst2)):
    lst2[i] = int(lst2[i])

for i in range(len(lst1)):

    if lst1[i] in lst2:

        x = lst2.index(lst1[i])

        if x == len(lst2) - 1:
            output.append(-1)

        else:

            if lst2[x+1] > lst1[i]:

                output.append(lst2[x+1])

            else: output.append(-1)

print(*output, sep = ',')