You are given a code:

def main_solution(x):
    return (func_13('gutxrq', '|') + func_4('uunhk'))

Can you predict the output of `main_solution("rjzqawmv")` 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": "rjzqawmv"}, "ref_output": "g|u|t|x|r|quunhk", "ref_code": "def main_solution(x):\n    return (func_13('gutxrq', '|') + func_4('uunhk'))", "funcname": "main_solution"}
rule