Start from the bottom left corner and go to the top right corner by stepping one at a time horizontally or vertically. Collect 9 numbers and add them. Which is the SUM that you can get ONLY ONCE?
Start from the bottom left corner and go to the top right corner by stepping one at a time horizontally or vertically. Collect 9 numbers and add them. Which is the SUM that you can get ONLY ONCE?