Introduction - If you have any usage issues, please Google them yourself
The issue of ID cards for 1-52 cards, face up, to start from the first two to 2 as the base, is a multiple of 2 cards over once, until the last card Then, from the first three starting 3 as the base, is a multiple of 3 cards over once, until the last card then ... from the first four to start, 4 as the base, is a multiple of 4 cards over once, until the last card ... again followed by a multiple of 5 cards over once, 6, 7 to 52 for the base until the turn, the output: At this time cards face up what?