package wasd;
import java.io.*;
public class Proyecto
{
	int n=4;
	int u=4, g=4;
	int matrix[][]=new int [u][g];
	FileInputStream archivo; BufferedReader leer;
	PrintWriter pr; String Linea;
	DataInputStream abrir;

	public void abrir()
	{
		try{
			leer=new BufferedReader(new FileReader("ARCHIVO.txt"));
			System.out.println("se abrio tu archivo");
		   }
		catch(Exception C)
			    {
				C.printStackTrace();
			    }
	}

	public void mostrarArchivo()
	{
		try
		{
			while((Linea=leer.readLine())!=null)
				System.out.println(Linea);
		}catch(Exception C)
			{
			C.printStackTrace();
			}
	}

	public void matris()
	{
		try {
			archivo=new FileInputStream ("ARCHIVO.txt");
				for (int u = 0; u<matrix.length; u++)
					{
					for (int g = 0; g < matrix.length; g++)
						{
					matrix[u][g] = archivo.read();
					System.out.print(" " + (char) matrix[u][g]);
				}
				System.out.println();
			 }
		   } catch (IOException C)
			{
			System.out.println();
			}
	}


	public void caminos()
	{
		if(matrix[0][0] == '0' || matrix[3][3] == '0'){
			System.out.println("0");
		}else{
	 		for (int u = 0; u < matrix.length; ) {
				for (int g = 0; g < matrix.length; ) {
					try {
						if(matrix[u][g + 1] == '0' && matrix[u + 1][g] == '0'){
							System.out.println("0");
							System.exit(0);
						}
					} catch (Exception C){
					}

					try {
						if(u == 3){
							if(matrix[u][g + 1] == '0')
							{
								System.out.println("0");
								System.exit(0);
							}
						}
					} catch (Exception C){
					}

					try {
						if(g == 3){
							if(matrix[u + 1][g] == '0'){
								System.out.println("0");
								System.exit(0);
							}
						}
					} catch (Exception C){
					}

					try {
						if(matrix[u][g + 1] == '1'){
							g++;
							if(u == (n-1) && g == (n-1)){
								System.out.println("1");
								System.exit(0);
							}
							continue;
						}
					} catch (Exception C){
					}

					try {
						if(matrix[u + 1][g] == '1'){
							u++;
							if(u == (n-1) && g == (n-1)){
								System.out.println("1");
								System.exit(0);
							}
							continue;
						}
					} catch (Exception C){
					}
				}
			}
		}
	}
}