import java.util.*;
import java.io.*;

public class Main {
	static IO io = new IO();
	static int INF = 1145141919;
	static int dx[] = {0, 1, 0, -1};
	static int dy[] = {1, 0, -1, 0};
	static int xs;
	static int ys;
	static int ans;
	public static void main(String[] args) {
		
		while (true) {
			
			xs = io.nextInt();
			ys = io.nextInt();
			if (xs==0 && ys==0) break;
			int map[][] = new int[xs][ys];
			int startx = 0;
			int starty = 0;
			for (int j=0; j<ys; j++) {
				for (int i=0; i<xs; i++) {
					map[i][j] = io.nextInt();
					if (map[i][j]==2) {
						startx = i;
						starty = j;
						map[i][j] = 0;
					}
				}
			}
			ans = INF;
			dfs(map, startx, starty, 0);
			if (ans<=10) System.out.println(ans);
			else System.out.println(-1);
			
		}
		
	}
	
	// ???????????¬??????y??§?¨???????????????§????§?????????°
	static int dfs(int map[][], int x, int y, int t) {
		
		if (t==10) return INF;
		for (int i=0; i<4; i++) {
			int k = 1;
			// 0??\?????????????????\????????????????????????????????§??????
			while (0<=x+k*dx[i] && x+k*dx[i]<xs && 0<=y+k*dy[i] && y+k*dy[i]<ys
					&& map[x+k*dx[i]][y+k*dy[i]]==0) {
				k++;
			}
			// ??????????????????????????????
			if (0>x+k*dx[i] || x+k*dx[i]>=xs || 0>y+k*dy[i] || y+k*dy[i]>=ys) {
				continue;
			}
			// ??´???????????????????????????
			else if (map[x+k*dx[i]][y+k*dy[i]]==3) {
				ans = Math.min(t+1, ans);
				break;
			}
			// ????????£?????????????????§??????????????????
			else if (k==1) continue;
			// ?????????????????¶?????????????????????
			else if (map[x+k*dx[i]][y+k*dy[i]]==1) {
				map[x+k*dx[i]][y+k*dy[i]] = 0;	// ????????????????¶????
				dfs(map, x+(k-1)*dx[i], y+(k-1)*dy[i], t+1);
				map[x+k*dx[i]][y+k*dy[i]] = 1;	// ?????????????????±????????????????????????????????????????????????
			}
		}
		
		return ans;
	}

	static class IO extends PrintWriter {
		private final InputStream in;
		private final byte[] buffer = new byte[1024];
		private int ptr = 0;
		private int buflen = 0;

		public IO() { this(System.in);}
		public IO(InputStream source) { super(System.out); this.in = source;}
		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;}
		private static boolean isNewLine(int c) { return c == '\n' || c == '\r';}
		private void skipUnprintable() { while(hasNextByte() && !isPrintableChar(buffer[ptr])) ptr++;}
		private void skipNewLine() { while(hasNextByte() && isNewLine(buffer[ptr])) ptr++;}
		public boolean hasNext() { skipUnprintable(); return hasNextByte();}
		public boolean hasNextLine() { skipNewLine(); 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 char[] nextCharArray(int len) {
			if (!hasNext()) {
				throw new NoSuchElementException();
			}
			char[] s = new char[len];
			int i = 0;
			int b = readByte();
			while(isPrintableChar(b)) {
				if (i == len) {
					throw new InputMismatchException();
				}
				s[i++] = (char) b;
				b = readByte();
			}
			return s;
		}
		public String nextLine() {
			if (!hasNextLine()) {
				throw new NoSuchElementException();
			}
			StringBuilder sb = new StringBuilder();
			int b = readByte();
			while(!isNewLine(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 char nextChar() {
			if (!hasNext()) {
				throw new NoSuchElementException();
			}
			return (char) readByte();
		}
		public double nextDouble() { return Double.parseDouble(next());}
		public int[] arrayInt(int n) { int[] a = new int[n]; for(int i=0;i<n;i++) a[i] = nextInt(); return a;}
		public long[] arrayLong(int n) { long[] a = new long[n]; for(int i=0;i<n;i++) a[i] = nextLong(); return a;}
		public double[] arrayDouble(int n) { double[] a = new double[n]; for(int i=0;i<n;i++) a[i] = nextDouble(); return a;}
		public void arrayInt(int[]... a) {for(int i=0;i<a[0].length;i++) for(int j=0;j<a.length;j++) a[j][i] = nextInt();}
		public int[][] matrixInt(int n,int m) { int[][] a = new int[n][]; for(int i=0;i<n;i++) a[i] = arrayInt(m); return a;}
		public char[][] charMap(int n,int m) { char[][] a = new char[n][]; for(int i=0;i<n;i++) a[i] = nextCharArray(m); return a;}
		public void close() {
			super.close();
			try {
				in.close();
			} catch (IOException e) {}
		}
	}
}

Measured memory_bytes: 26548