You are given a code:

def main_solution(x):
    return func_20(func_15(x), func_15('cpjyi'))

Can you predict the output of `main_solution("jycpp")` 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": "jycpp"}, "ref_output": "\u00ab\u00abjc\u00bb\u00bb\u00ab\u00abyp\u00bb\u00bb\u00ab\u00abcj\u00bb\u00bb\u00ab\u00abpy\u00bb\u00bb\u00ab\u00abpi\u00bb\u00bb", "ref_code": "def main_solution(x):\n    return func_20(func_15(x), func_15('cpjyi'))", "funcname": "main_solution"}
rule