#include<bits/stdc++.h>
using namespace std;
#ifdef DEB
#define D if(1)
#else
#define D if(0)
#endif

using ll = long long;

int main()
{
	int n,m;
	scanf("%d%d",&n,&m);
	printf("%d\n",n);
	for(int i=0;i<n;i++)
	{
		int in;
		scanf("%d",&in);
		printf("%d\n",in);
		
	}
	return 0;
}