You are given a code:

def main_solution(x):
    return (func_13('ydoyas', '-') + func_15('doqmnx'))

Can you predict the output of `main_solution("qqjrzi")` without writing any code? Please reason and put your final answer in the following json format: {"output": <your output>}, where <your output> should be the final string.
user
{"ref_input": {"x": "qqjrzi"}, "ref_output": "y-d-o-y-a-s\u00abd\u00bb\u00abo\u00bb\u00abq\u00bb\u00abm\u00bb\u00abn\u00bb\u00abx\u00bb", "ref_code": "def main_solution(x):\n    return (func_13('ydoyas', '-') + func_15('doqmnx'))", "funcname": "main_solution"}
rule