Incorrect percolation

package check;

public class Check
{

    public static void main(String[] args)
    {
        String input = "1,0,0,0,0;0,1,0,0,0;0,1,0,0,0;0,0,1,0,0;0,0,0,0,0";
        String[] input1 = input.split(";");
        String[][] input2 = new String[input1.length][];

        int mark1 = 0;
        int mark2 = 0;
        int check = 1;

        for(int x = 0; x < input1.length; x++)
        {
            input2[x] = input1[x].split(",");
        }

        if(input1.length == 1)
        {
            for(int x = 0; x < input1.length; x++)
            {
                if(input1[x].equals("1"))
                    check = 1;
            }
        }

        else
        {
            for(int y = 0; y<input1.length; y++)
            {
                for(int x = 0; x < input2[y].length; x++)
                {
                    if(input2[y][x].equals("1") && y == 0)
                        mark1 = x;

                    else if(input2[y][x].equals("1"))
                        mark2 = x;
                }

                if((mark2 -1 == mark1 || mark2 == mark1 || mark2 + 1 == mark1) && input1[y].contains("1") && check == 1)
                    check = 1;

                else
                    check = 0;

                if(y == 2)
                {
                     mark1 = mark2;
                }

            }
        }

        if(check == 1)
            System.out.println("yes");

        else
            System.out.println("no");
    }

}