【字符串2】字符串插入问题

Status	Submit By	Time	Memory	Language	Code	Submit At
AC	CodeFuncaeefe5034	1100ms	42.9 MiB	Java	1 KiB	2025-3-8 17:08:04
AC	丁花	1140ms	43 MiB	Java	868 Bytes	2025-3-9 21:15:48
AC	CodeFunff602a077f	1160ms	43 MiB	Java	877 Bytes	2025-3-7 20:03:18
AC	CodeFun373dfd78f5	1320ms	43.6 MiB	Java	1.4 KiB	2025-2-21 9:39:11
AC	CodeFun99da7fe8c9	1326ms	43.6 MiB	Java	599 Bytes	2025-2-10 22:40:23
AC	CodeFuncb4c1fa5aa	1363ms	44.2 MiB	Java	1 KiB	2025-2-4 9:49:37
AC	CodeFunac1b5a9317	1381ms	43.9 MiB	Java	1 KiB	2025-3-11 11:55:36
AC	CodeFun8c86b655b9	1424ms	43.7 MiB	Java	802 Bytes	2025-3-11 16:49:40
AC	CodeFun9c6c994c33	1431ms	43.9 MiB	Java	1 KiB	2025-3-7 16:34:58
AC	CodeFun3d12f40d1a	1436ms	44 MiB	Java	807 Bytes	2025-3-9 13:03:18
AC	bubbleshi	1439ms	43.6 MiB	Java	739 Bytes	2025-3-9 17:14:19
AC	nwpu_hang	1472ms	44 MiB	Java	1 KiB	2025-2-15 11:49:13
AC	CodeFun5ce495fc56	1483ms	44.2 MiB	Java	688 Bytes	2025-3-7 0:19:53
AC	CodeFun97ca46f7f6	1514ms	44.2 MiB	Java	1.3 KiB	2025-3-12 11:25:44
AC	喂鱼	1556ms	44.1 MiB	Java	1 KiB	2025-3-17 19:35:34
AC	codecloud	1696ms	44 MiB	Java	706 Bytes	2025-1-16 19:37:21
AC	liqishuo	1856ms	44.4 MiB	Java	849 Bytes	2025-1-18 10:33:09