#define _CRT_SECURE_NO_WARNINGS
#include <iostream>
#include <cstdio>
#include <string>
using namespace std;

int max(int a, int b) { return (a > b) ? a : b; }

int main(int argc, char *argv[]) {
	FILE *tmpf = tmpfile();
	FILE *infile = fopen(argv[1], "r");
	string str = "";
	int max_len = 0;
	while (true) {
		char c = fgetc(infile);
		if (feof(infile)) break;
		fputc((int)c, tmpf);
		if (c != ' ') str += c;
		else {
			max_len = max(max_len, (int)str.length());
			str = "";
		}
	}
	fclose(infile);
	FILE *file = fopen(argv[1], "w");
	rewind(tmpf);
	str = "";
	int i = 0;
	while (true) {
		char c = fgetc(tmpf);
		if (feof(tmpf)) break;
		if (c != ' ') str += c;
		else {
			i++;
			int len = (int)str.length();
			for (int j = 0; j <= max_len + 1; j++) {
				if (j < len) fputc((int)str[j], file);
				else fputc((int)' ', file);
			}
			if (i % atoi(argv[2]) == 0) fputc((int)'\n', file);
			str = "";
		}
	}
	fclose(file);
	fclose(tmpf);
	return 0;
}