public static int[] getCloseNumber(int x){

        int[] res = new int[2];

        int i = 1;

        int num = oneNumber(x);

        while(res[0] == 0 || res[1] == 0){

            if(oneNumber(x-i) == num && res[0] == 0){

                res[0] = x-i;

            }

            if(oneNumber(x+i) == num && res[1] == 0){

                res[1] = x + i;

            }

            i++;

        }

        return res;

    }

    public static int oneNumber(int x){

        String str = Integer.toBinaryString(x);

        int res = 0;

        for(int i = 0; i < str.length();i++){

            if(str.charAt(i) == '1'){

                res++;

            }

        }

        return res;

    }