n,m=map(int,input().split()) n1=input().split() m1=input().split() i=0 j=len(n1)-1 k1=0 ans='' for k in m1: while i<=j: m=(i+j)//2 if k<n1[m]: j=m-1 elif k>=n1[m]: i=m+1 while n1[j]==k and n1[j]==n1[j-1]: j=j-1 if n1[j]==k: ans=ans+str(j+1) else: ans+='-1' i=0 print(ans) while i!=len(ans): if ans[i]!='-': print(int(ans[i]),end=' ') i+=1 elif ans[i]=='-': print(int(ans[i:i+2]),end=' ') i=i+2