“交叉引用生成器”（cross-refrencer）是指具有如下功能的程序：

对输入的一篇文档，统计出现的所有单词及其所在行号。将其结果以规定格式输出。



【输入形式】

程序从文件crossin.txt读入一篇文档。该文档由若干行组成，每行中包含一系列单词。

行号由1开始计数。该文档中单词总量不超过200，每个单词长度最大不超过20个字符。-" Cross-reference generator"　(cross-refrencer) refers to the procedure with the following features: the input of a document, all occurrences of the word statistics and the line number. The results in the prescribed form of its output. 【】 Program from file input form crossin.txt read a document. The document consists of several lines, each line contains a series of words. Line numbers start counting from 1. The document does not exceed 200 words in total, the maximum length of each word not more than 20 characters.