You are given a code:

def main_solution(x):
    return func_5(func_5(x, 'rt'), 'dpl')

Can you predict the output of `main_solution("uggwc")` 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": "uggwc"}, "ref_output": "dplrtuggwc", "ref_code": "def main_solution(x):\n    return func_5(func_5(x, 'rt'), 'dpl')", "funcname": "main_solution"}
rule