【字符串2】字符串插入问题

Status	Submit By	Time	Memory	Language	Code	Submit At
AC	CodeFun1b1e571d3a	384ms	64.7 MiB	PyPy3	203 Bytes	2025-5-5 17:28:19
AC	CodeFun52b8936aab	385ms	64.6 MiB	PyPy3	255 Bytes	2025-4-21 10:09:20
AC	CodeFun7287604e5c	385ms	64.4 MiB	PyPy3	327 Bytes	2025-5-14 8:52:58
AC	CodeFunfb4676dbd4	390ms	64.5 MiB	PyPy3	264 Bytes	2025-8-19 16:31:34
AC	CodeFunef0672857e	390ms	64.6 MiB	PyPy3	256 Bytes	2025-8-17 15:25:25
AC	CodeFun7e1055baf0	391ms	64.7 MiB	PyPy3	288 Bytes	2025-6-13 15:24:27
AC	CodeFun_KUL	391ms	64.6 MiB	PyPy3	495 Bytes	2025-3-29 21:08:59
AC	CodeFuna8925cc986	392ms	64.7 MiB	PyPy3	347 Bytes	2025-4-23 23:27:14
AC	CodeFun26467fa374	394ms	64.7 MiB	PyPy3	169 Bytes	2025-5-9 19:13:01
AC	CodeFune7cb1856da	394ms	64.7 MiB	PyPy3	290 Bytes	2025-8-8 9:34:45
AC	CodeFun03cde2ad9a	397ms	64.7 MiB	PyPy3	407 Bytes	2025-7-2 10:50:26
AC	CodeFun2526f9bf63	406ms	64.6 MiB	PyPy3	202 Bytes	2025-4-13 21:49:26
AC	CodeFun24592ec125	409ms	64.6 MiB	PyPy3	310 Bytes	2025-5-8 20:50:51
AC	辛弃疾YYY	427ms	70.7 MiB	PyPy3	652 Bytes	2025-8-11 11:25:57
AC	CodeFunf52bea30ca	435ms	64.4 MiB	PyPy3	214 Bytes	2025-4-16 15:53:51
AC	CodeFun8bdea1eb74	436ms	64.3 MiB	PyPy3	259 Bytes	2025-9-4 19:24:14
AC	CodeFun8d816f4f54	436ms	64.7 MiB	PyPy3	277 Bytes	2025-9-3 17:25:47
AC	CodeFun6698879a69	446ms	64.6 MiB	PyPy3	233 Bytes	2025-8-23 4:44:19
AC	CodeFun79cf701a33	448ms	64.7 MiB	PyPy3	266 Bytes	2025-7-2 12:10:38
AC	Cartisty	450ms	64.6 MiB	PyPy3	632 Bytes	2025-8-28 15:27:45
AC	CodeFun27ea98c451	461ms	64.7 MiB	PyPy3	256 Bytes	2025-9-3 9:18:59
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