3,15,16,17,19,23,24,27,29,33,39,47,62,83,88,97,97
9,33,41,53,83,91,95
3,9,15,16,17,19,23,24,27,29,33,33,39,41,47,53,62,83,83,88,91,95,97,97,
lst1=list(map(int,input().split(",")))
lst2=list(map(int,input().split(",")))
m = len(lst1)-1
n = len(lst2)-1
lst1 += [0]*(n+1)
k=len(lst1)-1
while __________:
if __________:
lst1[k]= lst1[m]
m-=1
else:
lst1[k] = lst2[n]
n-=1
__________
for i in range(len(lst1)):
print(lst1[i],end=",")