For example if the answer is a object with row 45 and column 57 then your answer would be r45c57 Rows and columns start at 0 . If you'd read this far, then rc is the answer to the first problem. Assume the width is 100 and the height is 100 would return: Assume the width is 100 and the height is 100 would return: Assume the width is 100 and the height is 100 would return: Assume the width is 50 and the height is 150 would return: Assume the width is 150 and the height is 50 would return: Assume the width is 150 and the height is 50 would return: Assume the width is 50 and the height is 150 would return: Assume the width is 50 and the height is 150 would return