Pixelkenstein: Joyful Christmas Celebration

The holiday season, especially in Western societies, is deeply meaningful. Among the myriad stories linked with Christmas, the most famous is that of Santa Claus. The story goes like this: In a chilly winter, the Christmas Elder starts collecting gifts to give to children. However, due to the severe cold, Santa Claus finds it difficult to gather the presents quickly. You are encouraged to help Santa Claus by collecting as many gifts as possible within the given time.