1. Vasya has 8 cards with the digits 1, 2, 3, and 4 - two of each digit. He wants to form an eight-digit number such that there is one digit between the two 1s, two digits between the two 2s, three digits between the two 3s, and four digits between the two 4s. Provide any number that Vasya can form.
Answer: 41312432 or 23421314.

Criteria. 7 points for indicating one of the numbers that meet the condition. 7 points for indicating both numbers that meet the condition. No need to describe the method of constructing the numbers. In all other cases (including if several numbers are indicated, among which there are those that do not meet the condition) - 0 points.