【字符串2】字符串插入问题

Status	Submit By	Time	Memory	Language	Code	Submit At
AC	CodeFune078c1dded	468ms	64.4 MiB	PyPy3	494 Bytes	2025-9-25 22:31:57
AC	CodeFun6ccc9a74ea	469ms	64.4 MiB	PyPy3	191 Bytes	2025-9-27 15:04:20
AC	CodeFun65d974065b	470ms	64.5 MiB	PyPy3	270 Bytes	2025-10-9 19:21:45
AC	CodeFun9ce88130fc	471ms	64.4 MiB	PyPy3	494 Bytes	2025-9-17 23:41:32
AC	CodeFun1c389a98f0	473ms	64.4 MiB	PyPy3	291 Bytes	2025-10-6 4:57:59
AC	CodeFun0b32804a33	474ms	64.3 MiB	PyPy3	270 Bytes	2025-9-28 11:11:23
AC	CodeFun0ed45c729e	475ms	64.3 MiB	PyPy3	414 Bytes	2025-9-21 16:32:20
AC	MGodmonkey	478ms	64.4 MiB	PyPy3	227 Bytes	2025-9-23 22:17:56
AC	CodeFun5de4eba35c	486ms	64.4 MiB	PyPy3	253 Bytes	2025-9-27 17:28:23
AC	CodeFun4f90c9ef2d	502ms	64.5 MiB	PyPy3	217 Bytes	2025-9-29 17:25:20
AC	luoqi2	503ms	64.3 MiB	PyPy3	371 Bytes	2025-9-20 15:36:20
AC	CodeFun1595729b73	504ms	64.7 MiB	PyPy3	239 Bytes	2025-9-17 15:32:15
AC	SilverGrey	506ms	64.7 MiB	PyPy3	205 Bytes	2025-10-18 0:24:32
AC	CodeFun6cae51910f	520ms	64.3 MiB	PyPy3	287 Bytes	2025-10-18 19:31:54
AC	CodeFun5620203d1b	553ms	64.5 MiB	PyPy3	231 Bytes	2025-9-24 14:34:54
AC	CodeFune518bdfcfc	560ms	10.3 MiB	Python 3	265 Bytes	2025-1-13 13:54:22
AC	CodeFun3ad9dd81fd	581ms	63.2 MiB	PyPy3	455 Bytes	2025-3-18 16:41:49
AC	CodeFun459aed5985	584ms	63.2 MiB	PyPy3	330 Bytes	2025-3-19 10:45:51
AC	luti	599ms	63.3 MiB	PyPy3	850 Bytes	2024-12-7 16:37:18
AC	Megan0225	781ms	63.3 MiB	PyPy3	494 Bytes	2025-1-23 12:06:30
AC	CodeFun0e7a0c557f	786ms	63.2 MiB	PyPy3	218 Bytes	2025-3-17 21:35:28
AC	CodeFun553575998d	789ms	63.3 MiB	PyPy3	235 Bytes	2025-3-17 16:33:29
AC	CodeFun89ba0e1a84	789ms	63.1 MiB	PyPy3	368 Bytes	2025-3-16 14:10:47
AC	CodeFunccfb061877	826ms	63.4 MiB	PyPy3	395 Bytes	2025-3-10 22:17:36
AC	yi_yang	900ms	63.4 MiB	PyPy3	263 Bytes	2025-3-10 15:01:34
AC	CodeFunb76b3b5471	922ms	67.4 MiB	PyPy3	323 Bytes	2025-3-2 14:59:09