38 lines
867 B
C++
38 lines
867 B
C++
#include <iostream>
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#include<stdio.h>
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#include<string.h>
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using namespace std;
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#define N 1005
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bool ans[N][N];
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int str1[N],str2[N],str3[N*2];
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int n,m,t;
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void solve(int n1,int n2)
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{
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if(n1>n||n2>m) return ;
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if(n1==n&&n2==m)
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{
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ans[n1][n2]=1; return ;
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}
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if(ans[n1][n2]) return ;
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ans[n1][n2]=1;
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if(str3[n1+n2+1]==str1[n1+1]&&!ans[n][n])
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solve(n1+1,n2);
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if(str3[n1+n2+1]==str2[n2+1]&&!ans[n][n])
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solve(n1,n2+1);
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}
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int main()
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{
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int i,j,k;
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while(scanf("%d%d",&n,&m),n&&m)
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{
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for(i=1;i<=n;i++) scanf("%d",&str1[i]);
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for(i=1;i<=m;i++) scanf("%d",&str2[i]);
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for(i=1;i<=n+m;i++) scanf("%d",&str3[i]);
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memset(ans,0,sizeof(ans));
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solve(0,0);
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if(ans[n][m]) puts("possible");
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else puts("not possible");
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}
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return 0;
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}
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