A problem on weather. I don't remember exactly, but its something like this. We went to some place and it rained for 15 days. Clear mornings are followed by rainy afternoons. And all clear afternoons are preceeded by rainy mornings. It rained continuiosly for 10
mornings. It rained for 12 afternoons. And 13 days are without any rain. How many days we stayed in the new place?