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  1. n,m=map(int,input().split())
  2. A=list(map(int,input().split()))
  3. B=list(map(int,input().split()))
  4. for i in range(n):
  5. for j in range(m):
  6. if(A[i]==B[j]):
  7. A.remove(B[j])
  8. A.append(0)
  9. break
  10. print(A)
  11. # your code goes here
Success #stdin #stdout 0.08s 14024KB
stdin
8 5
1 2 2 3 3 3 5 6
2 2 7 3 2
stdout
[1, 2, 3, 5, 6, 0, 0, 0]