You are given a code:

def main_solution(x):
    return func_20(('ptxugc' + 'nwg'), func_15('fct'))

Can you predict the output of `main_solution("zika")` 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": "zika"}, "ref_output": "p\u00abtfx\u00bbu\u00abgcc\u00bbn\u00abwtg\u00bb", "ref_code": "def main_solution(x):\n    return func_20(('ptxugc' + 'nwg'), func_15('fct'))", "funcname": "main_solution"}
rule