#include <iostream>
#include <cstdlib>
#include <stdio.h>
#include <string>
#include <string.h>
using namespace std;

string words[10010];
int lengths[10010];

int main() {
	int L;
	while(1){
		string LL;
		getline(cin, LL);
		L = atoi(LL.c_str());
		if(L == 0) break;
		int numOfWords = 0;
		string s;
		while(1){
			getline(cin, s);

			int len = s.length();
			if(len == 0) break;
			string temp = "";
			for(int i = 0; i < len; i++){
				if(s[i] != ' ') temp += s[i];
				else if(temp.length() > 0){
					words[numOfWords] = temp;
					lengths[numOfWords] = temp.length();
					numOfWords ++;
					temp = "";
				}
				else continue;
				if(i == len-1 && temp.length() > 0){
					words[numOfWords] = temp;
					lengths[numOfWords] = temp.length();
					numOfWords ++;
				}
			}
		}
		int badness[10010], traceGS[10010], traceLen[10010];
		badness[numOfWords] = 0;
		for(int i = numOfWords - 1; i >= 0; i--){
			int bdns = 2147483647;
			int tGS, tL;
			int zlen = lengths[i];
			int gs = 1;
			while(zlen <= L - gs + 1 && i + gs <= numOfWords){
				if(gs == 1){
					if(zlen == L){
						if(bdns >= badness[i+1]){
							bdns = badness[i+1];
							tGS = 1;
						}
					}
					else{
						if(bdns >= 500 + badness[i+1]){
							bdns = 500+badness[i+1];
							tGS = 1;
						}
					}
				}
				else{
					int mod = (L-zlen)%(gs-1), shang = (L-zlen)/(gs-1);
					int score = mod * shang * shang + (gs-1-mod) * (shang-1) * (shang-1) + badness[i+gs];
					if(bdns >= score){
						bdns = score;
						tGS = gs;
						tL = zlen;
					}
				}
				zlen += lengths[i+gs];
				gs ++;
			}
			badness[i] = bdns;
			traceGS[i] = tGS;
			traceLen[i] = tL;
		}
		int idx = 0;
		while(idx < numOfWords){
			int GS = traceGS[idx];
			int zlen = traceLen[idx];
			if(GS == 1){
				cout << words[idx];
				for(int i = 0; i < L-lengths[idx]; i++){
					cout << " ";
				}
				cout << endl;
			}
			else{
				int mod = (L-zlen)%(GS-1), shang = (L-zlen)/(GS-1);
				for(int i = 0; i < GS; i++){
					cout << words[idx+i];
					if(i == GS-1){
						cout << endl;
					}
					else{
						for(int j = 0; j < shang; j++) cout << " ";
						if(i >= GS-1-mod) cout << " ";
					}
				}
			}
			idx += GS;
		}
		cout << endl;
	}
	return 0;
}