You are given a code:

def main_solution(x):
    return (func_19('zrv', 2) + func_13(x, '|'))

Can you predict the output of `main_solution("winwqtqln")` 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": "winwqtqln"}, "ref_output": "vzrw|i|n|w|q|t|q|l|n", "ref_code": "def main_solution(x):\n    return (func_19('zrv', 2) + func_13(x, '|'))", "funcname": "main_solution"}
rule