You are given a code:

def main_solution(x):
    return func_20(func_15('gsrtc'), func_1('rcrxt', 2))

Can you predict the output of `main_solution("tzprzd")` 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": "tzprzd"}, "ref_output": "\u00abrgc\u00bbr\u00abxst\u00bbr\u00abcrr\u00bbx\u00abtt\u00bb\u00abc\u00bb", "ref_code": "def main_solution(x):\n    return func_20(func_15('gsrtc'), func_1('rcrxt', 2))", "funcname": "main_solution"}
rule