## Attraversare in riga

You once again have to let the buggle traverse the world numbering the cells on its way, but the goal of this exercise is to write a line traversal. Most of the code you wrote for previous exercise remains usable here. Simply, the method computing the coordinates of the next buggle position has to be correctly updated: if you are at the right of a line, you have to go to the beginning of the next one. If not, you have to go to the right cell.

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