Moving element in 2 dimensional array

I can move element "kanin" from dimension 0 to 1, but not back with my else statment. My goal is to check if this "element" is in dimension 0, it moves to dimension 1, and if it is in dimension 1 it moves to dimension 0. But only the if-statement works

public static string[,] Kanin(string[,] strand) {
        for (int i = 0; i < strand.GetLength(0); i++)
        {
            if (i==0)
            {
                for (int x = 0; x < strand.GetLength(1); x++)
                {
                    if (strand[i, x] == "kanin")
                    {

                        for (int y = 0; y < strand.GetLength(1); y++)
                        {
                            if (strand[1, y] == "")
                            {
                                strand[1, y] = strand[i, x];
                                strand[i, x] = "";
                            }
                        }
                    }
                }
            }
            
            else
            {
                for (int x = 0; x < strand.GetLength(0); x++)
                {
                    if (strand[i, x] == "kanin")
                    {
                        for (int y = 0; y < strand.GetLength(0); y++)
                        {
                            if (strand[0, y] == "")
                            {
                                strand[0, y] = strand[i, x];
                                strand[i, x] = "";
                            }
                        }
                    }
                }
            }
            

        }

        return (strand);
    }