input = input[:index] + chr(char) + input[index:]
63-летняя Деми Мур вышла в свет с неожиданной стрижкой17:54。关于这个话题，新收录的资料提供了深入分析
。新收录的资料对此有专业解读
改革，体现在“多元共治”的司法智慧里——
Note how the black A is totally invisible on the black terminal, while the white H looks the same as normal text. If we chose a different color-scheme for our terminal, it would be the opposite:，推荐阅读新收录的资料获取更多信息