private static void changeCol(int аrray[][], int col1, int col2) { 
        int help;
        for (int i = 0; i < аrray.length; i++) {
            help = аrray[i][col1];
            аrray[i][col1] = аrray[i][col2];
            аrray[i][col2] = help;
        }

    }