rt，试了很多次P10585

#include<bits/stdc++.h>
using namespace std;

typedef long long ll;
ll n,x,y;

int main(){
	cin>>n>>x>>y;
    cout<<1<<" ";
	n=n-x-1;
    for(int i=1;i<=x;i++)
    	cout<<3<<" ";
    for(int i=1;i<=n;i++)
        cout<<y<<" ";
	return 0;
}