You are given a code:

def main_solution(x):
    return func_20(('krohr').capitalize(), func_15('ygnokl'))

Can you predict the output of `main_solution("ldi")` 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": "ldi"}, "ref_output": "K\u00abryo\u00bbh\u00abrg\u00bb\u00abn\u00bb\u00abo\u00bb\u00abk\u00bb\u00abl\u00bb", "ref_code": "def main_solution(x):\n    return func_20(('krohr').capitalize(), func_15('ygnokl'))", "funcname": "main_solution"}
rule