sharpen thinking game

Fill empty boxes in main grid with appropriate numbers from the top list of numbers to satisfy the following rules.
One, sum of all horizontal numbers in a row equal to total of a row on right box of a row.
Two, sum of all vertical numbers in a column equal to total of a column on bottom box of a column.
Third, sum of all section numbers in a grid section equal to total of grid section on left box of a section.
HINT: 1. First click to select the cell on the grid and then click the number on the top list to fill it on the cell.
2. Click on the cell number and then click clear to remove it.