#include <bits/stdc++.h>

using namespace std;

signed main() {
    int n, k, l; scanf("%d%d%d", &n, &k, &l);
    printf("%d\n", (1ll * k * l + n - 1) / n);
    for (int i = 1; i <= n; ++i) putchar((i <= k) + '0');
    puts("");
    string s(n, '0');
    for (int i = 0, j = 0; i < l; ++i, j = (j + k) % n) {
        while (s[j] == '1') j = (j + 1) % n;
        s[j] = '1';
    }
    puts(s.c_str());
    return 0;
}