for (int i = 0; i < array.Length-1; i++)
          {
            for (int j = i+1; j < array.Length; j++)
            {
                if (array[j]<array[i])
                {
                    int variableNum = array[j];
                    array[j] = array[i];
                    array[i] = variableNum;
                }
             }