#include<stdio.h>
int main()
{
int n,m,i;
int cmd[m],num[n];
for(i=0;i<m;i++)
for(i=0;i<n;i++)
num[i]=i+1;
for(i=m-1;i>=0;i--)
if(num[cmd[i]-1]!=0)
printf("%d\n",cmd
[i
]),num
[cmd
[i
]-1]=0;
for(i=0;i<n;i++)
if(num[i]!=0)
return 0;
}
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