You are given a code:

def main_solution(x):
    return (func_13('wsagrm', '_') + func_13('qkyy', '|'))

Can you predict the output of `main_solution("elfopxneh")` 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": "elfopxneh"}, "ref_output": "w_s_a_g_r_mq|k|y|y", "ref_code": "def main_solution(x):\n    return (func_13('wsagrm', '_') + func_13('qkyy', '|'))", "funcname": "main_solution"}
rule