import java.io.IOException;
import java.io.InputStream;
import java.util.NoSuchElementException;
import static java.lang.Math.max;
import static java.lang.Math.min;


public class Main {
    public static void main(String[] args) {
        FastScanner fsc = new FastScanner();
        int a = fsc.nextInt();
        int b = fsc.nextInt();
        char[][] g = new char[100][100];
        int x = max(a, b);
        int y = min(a, b) - 1;
        char[][] b0 = { "...#".toCharArray(),
                        "...#".toCharArray(),
                        "...#".toCharArray(),
                        "####".toCharArray()};

        char[][] b1 = { "...#".toCharArray(),
                        ".#.#".toCharArray(),
                        "...#".toCharArray(),
                        "####".toCharArray()};

        char[][] b2 = { "####".toCharArray(),
                        "####".toCharArray(),
                        "####".toCharArray(),
                        "####".toCharArray()};

        for (int i = 0; i + 3 < 100; i += 4) {
            for (int j = 0; j + 3 < 100; j += 4) {
                if (x == 0) {
                    for (int s = 0; s < 4; s++) {
                        for (int t = 0; t < 4; t++) {
                            g[i + s][j + t] = b2[s][t];
                        }
                    }
                } else if (x > y) {
                    for (int s = 0; s < 4; s++) {
                        for (int t = 0; t < 4; t++) {
                            g[i + s][j + t] = b0[s][t];
                        }
                    }
                    --x;
                } else {
                    for (int s = 0; s < 4; s++) {
                        for (int t = 0; t < 4; t++) {
                            g[i + s][j + t] = b1[s][t];
                        }
                    }
                    --x;
                    --y;
                }
            }
        }
        if (a < b) {
            for (int i = 0; i < 100; i++) {
                for (int j = 0; j < 100; j++) {
                    g[i][j] = g[i][j] == '.' ? '#' : '.';
                }
            }
        }
        StringBuilder sb = new StringBuilder("100 100\n");
        for (int i = 0; i < 100; i++) {
            sb.append(String.valueOf(g[i])).append('\n');
        }
        System.out.print(sb);
    }
}


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());}
}


Measured memory_bytes: 22996