CF2087A Password Generator

Monocarp is going to register on the Codeforces website, but he can't come up with a sufficiently secure password. The requirements that his password must meet are as follows: - the password must consist of digits, as well as uppercase and lowercase letters of the Latin alphabet; - there must be exactly $ a $ digits, exactly $ b $ uppercase letters, and exactly $ c $ lowercase letters; - for security, no two adjacent characters in the password should be the same. The lowercase and uppercase versions of the same letter are considered different characters. Write a program that generates a password that meets all the requirements.

The first line contains a single integer $ t $ ( $ 1 \le t \le 1000 $ ) — the number of test cases. Each test case consists of one line containing three integers $ a $ , $ b $ , and $ c $ ( $ 1 \le a, b, c \le 10 $ ).

For each test case, output one line containing any suitable password. It can be shown that there is always at least one password that meets the requirements.