氵氵

#include<cstdio>
#include<stack>
using namespace std;
stack<int> q;
int main(int n,int m,int k){
    scanf("%d%d",&n,&m);
    while(m--){
        n--;
        scanf("%d",&k);
        q.push(k);
    }
    while(!q.empty()){
        printf("%d ",q.top());
        q.pop();
    }
    while(n--) scanf("%d",&k),printf("%d ",k);
}