#include <bits/stdc++.h>

/* strict input checker */

int read_int() {
	int c = getchar(), s = 0, res = 0;
	if (c == '-') s = 1, c = getchar();
	assert('0' <= c && c <= '9');
	if (s) assert(c != '0');
	res = c - '0';
	while (1) {
		c = getchar();
		if (c < '0' || c > '9') break;
		assert(res <= 200000000); // avoid overflow
		assert(res); // no leading-zero
		res = res * 10 + c - '0';
	}
	ungetc(c, stdin);
	return s ? -res : res;
}
void read_linebreak() {
	int c = getchar();
	if (c == '\r') c = getchar();
	assert(c == '\n');
}

int main() {
	int n = read_int();
	assert(getchar() == ' ');
	int k = read_int();
	assert(getchar() == ' ');
	int m = read_int();
	read_linebreak();

	assert(1 <= n && n <= 3000);
	assert(1 <= k && k <= n);
	assert(1 <= m && m <= n);
	assert(n <= m * k);

	for (int i = 0; i < n; i++) {
		int a = read_int();
		if (i < n - 1)assert(getchar() == ' ');
		else read_linebreak();

		assert(abs(a) <= 1000000000);
	}

	assert(getchar() == EOF);
	return 0;
}