#include <stdio.h>
#include <string.h>
#include<math.h>
 
int po(int x,int y){
    int ans=1;
    while(y--){
        ans*=x;
    }
    return ans;
}
 
int main(void) {
	// your code goes here
	int m,k,i=1,p,s;
	scanf("%d",&m);
	k=m*5;
	while(k>=m*4)
	{
		s=k/5;
		i=2;
		p=k/po(5,i);
		while(p>0)
		{s=s+p;
		i++;
		p=k/po(5,i);}
		if(s==m)
		break;
		k=k-5;
	}
	if(k<m*4)
	printf("0\n");
	else
	printf("5\n%d %d %d %d %d\n",k,k+1,k+2,k+3,k+4);
	return 0;
}

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