import java.io.BufferedReader import java.io.InputStream import java.io.InputStreamReader import java.lang.AssertionError import java.util.* import kotlin.math.abs import kotlin.math.max import kotlin.math.min val MOD = 1_000_000_007 class Solver(stream: InputStream, private val out: java.io.PrintWriter) { private val reader = BufferedReader(InputStreamReader(stream), 32768) private val W = ni() private val H = ni() private val X = ni() fun solve() { if (!solve2()) out.println(-1) } fun solve2(): Boolean { if (X > 36) return false val ans = Array(H){IntArray(W)} fun build(H: Int, W: Int, A: IntArray, dst: Array) { for (row in 0 until H) { for (col in 0 until W) { if (row%3 == 2 || col%3 == 2) continue dst[row][col] = A[row%3 + col%3*2] } } } val H_test = if (H > 10) H%3 + 3 else H val W_test = if (W > 10) W%3 + 3 else W val ans_test = Array(H_test){IntArray(W_test)} fun test(dst: Array) = run { var ok = true for (i in 0 until H) { for (j in 0 until W) { var sum = 0 for (di in -1 .. 1) { for (dj in -1 .. 1) { if (i+di in 0 until H && j+dj in 0 until W) { sum += dst[i+di][j+dj] } } } ok = ok && sum == X } } ok } for (i in 0 .. 9) { for (j in 0 .. 9) { for (k in 0 .. 9) { for (l in 0 .. 9) { if (i + j + k + l != X) continue val A = intArrayOf(i, j, k, l) build(H_test, W_test, A, ans_test) if (test(ans_test)) { build(H, W, A, ans) assert(test(ans)) for (itr in ans) { out.println(itr.joinToString("")) } return true } } } } } return false } private val isDebug = try { // なんか本番でエラーでる System.getenv("MY_DEBUG") != null } catch (t: Throwable) { false } private var tokenizer: StringTokenizer? = null private fun next(): String { while (tokenizer == null || !tokenizer!!.hasMoreTokens()) { tokenizer = StringTokenizer(reader.readLine()) } return tokenizer!!.nextToken() } private fun ni() = next().toInt() private fun nl() = next().toLong() private fun ns() = next() private fun na(n: Int, offset: Int = 0): IntArray { return IntArray(n) { ni() + offset } } private fun nal(n: Int, offset: Int = 0): LongArray { val res = LongArray(n) for (i in 0 until n) { res[i] = nl() + offset } return res } private fun na2(n: Int, offset: Int = 0): Array { val a = Array(2){IntArray(n)} for (i in 0 until n) { for (e in a) { e[i] = ni() + offset } } return a } private inline fun debug(msg: () -> String) { if (isDebug) System.err.println(msg()) } private inline fun debug(a: LongArray) { debug { a.joinToString(" ") } } private inline fun debug(a: IntArray) { debug { a.joinToString(" ") } } private inline fun debug(a: BooleanArray) { debug { toString(a) } } private inline fun toString(a: BooleanArray) = run{a.map { if (it) 1 else 0 }.joinToString("")} private inline fun debugDim(A: Array) { if (isDebug) { for (a in A) { debug(a) } } } private inline fun debugDim(A: Array) { if (isDebug) { for (a in A) { debug(a) } } } private inline fun debugDim(A: Array) { if (isDebug) { for (a in A) { debug(a) } } } /** * 勝手にimport消されるのを防ぎたい */ private fun hoge() { min(1, 2) max(1, 2) abs(-10) } private inline fun assert(b: Boolean) = run{if (!b) throw AssertionError()} } fun main() { val out = java.io.PrintWriter(System.out) Solver(System.`in`, out).solve() out.flush() }