import java.io.IOException;
import java.io.InputStream;
import java.io.PrintWriter;
import java.util.Arrays;
import java.util.NoSuchElementException;

public class Main {
	public static void main(String[] args) {
		new Main().run();
	}
	
	int pow(int a,int n) {
		return n!=0?pow(a*a,n/2)*(n%2==1?a:1):1;
	}
	
	int get(int v,int i,int j) {
		if (i<0||j<0||i>=3||j>=3) return 0;
		return v/pow(10,i+2*j)%10;
	}
	
	void run() {
		FastScanner sc=new FastScanner();
		int W=sc.nextInt();
		int H=sc.nextInt();
		int X=sc.nextInt();
		assert(1<=W&&W<=600&&1<=H&&H<=600);
		assert(0<=X&&X<=81);
		out:for (int v=0;v<10000;++v) {
			{
				int cur=v;
				int sum=0;
				while (cur>0) {
					sum+=cur%10;
					cur/=10;
				}
				if (sum!=X) continue out;
			}
			for (int i=0;i<=(H-1)%3;++i) {
				for (int j=0;j<=(W-1)%3;++j) {
					int sum=0;
					for (int di=-1;di<=1;++di) {
						for (int dj=-1;dj<=1;++dj) {
							int ni=i+di;
							int nj=j+dj;
							if (ni>(H-1)%3 || nj>(W-1)%3 || ni<0 || nj<0) continue;
							sum+=get(v,ni,nj);
						}
					}
					if (sum!=X) continue out;
				}
			}
			PrintWriter pw=new PrintWriter(System.out);
			for (int i=0;i<H;++i) {
				for (int j=0;j<W;++j) {
					int m=(i%3==2||j%3==2)?0:get(v,i%3,j%3);
					pw.print(m+(j==W-1?"\n":""));
				}
			}
			pw.flush();
			return;
		}
		System.out.println(-1);
	}

	void tr(Object...o) {System.out.println(Arrays.deepToString(o));}
}

class FastScanner {
    private final InputStream in = System.in;
    private final byte[] buffer = new byte[1024];
    private int ptr = 0;
    private int buflen = 0;
    private boolean hasNextByte() {
        if (ptr < buflen) {
            return true;
        }else{
        	ptr = 0;
            try {
                buflen = in.read(buffer);
            } catch (IOException e) {
                e.printStackTrace();
            }
            if (buflen <= 0) {
                return false;
            }
        }
        return true;
    }
    private int readByte() { if (hasNextByte()) return buffer[ptr++]; else return -1;}
    private static boolean isPrintableChar(int c) { return 33 <= c && c <= 126;}
    public boolean hasNext() { while(hasNextByte() && !isPrintableChar(buffer[ptr])) ptr++; return hasNextByte();}
    public String next() {
        if (!hasNext()) throw new NoSuchElementException();
        StringBuilder sb = new StringBuilder();
        int b = readByte();
        while(isPrintableChar(b)) {
            sb.appendCodePoint(b);
            b = readByte();
        }
        return sb.toString();
    }
    public long nextLong() {
        if (!hasNext()) throw new NoSuchElementException();
        long n = 0;
        boolean minus = false;
        int b = readByte();
        if (b == '-') {
            minus = true;
            b = readByte();
        }
        if (b < '0' || '9' < b) {
            throw new NumberFormatException();
        }
        while(true){
            if ('0' <= b && b <= '9') {
                n *= 10;
                n += b - '0';
            }else if(b == -1 || !isPrintableChar(b)){
                return minus ? -n : n;
            }else{
                throw new NumberFormatException();
            }
            b = readByte();
        }
    }
    public int nextInt() {
        long nl = nextLong();
        if (nl < Integer.MIN_VALUE || nl > Integer.MAX_VALUE) throw new NumberFormatException();
        return (int) nl;
    }
    
    public double nextDouble() { return Double.parseDouble(next());}
}