You are given a code:

def main_solution(x):
    return func_20(func_5('hituu', 'tcci'), (x + 'tcz'))

Can you predict the output of `main_solution("kflmssvmah")` 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": "kflmssvmah"}, "ref_output": "tkcfclimhsistvumuahtcz", "ref_code": "def main_solution(x):\n    return func_20(func_5('hituu', 'tcci'), (x + 'tcz'))", "funcname": "main_solution"}
rule