#include <assert.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>


/// Prints *str* *times* to standard output.
int
repeat(const int times, const char* str)
{
	for (int i = 0; i < times; ++i)
		printf("%s", str);
	return printf("\n");
}


/// Concatenates strings from *strv*. User needs to free allocated string.
char*
concat(const int strc, const char* strv[])
{
	assert(0 < strc);
	int i;
	int len = 0;
	for (i = 0; i < strc; ++i)
		len += 1 + strlen(strv[i]);
	char* const str = malloc(len);
	str[0] = 0;
	char* ptr = stpcpy(str, strv[0]);
	for (int i = 1; i < strc; ++i) {
		*ptr = ' ';
		*++ptr = 0;
		ptr = stpcpy(ptr, strv[i]);
	}
	return str;
}


int
main(const int argc, const char* argv[])
{
	if (3 > argc)
		return 1;
	const int times = atoi(argv[1]);
	if (1 > times)
		return 1;
	const char* str = concat(argc - 2, &argv[2]);
	return repeat(times, str);
}