You are given a code:

def main_solution(x):
    return (func_20('vene', 'tajc') + func_13('oqc', '-'))

Can you predict the output of `main_solution("orxxnjiic")` 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": "orxxnjiic"}, "ref_output": "vteanjeco-q-c", "ref_code": "def main_solution(x):\n    return (func_20('vene', 'tajc') + func_13('oqc', '-'))", "funcname": "main_solution"}
rule