将x插入到顺序表的适当位置上，以保持该表的有序性。

输入数据：文本文件input.txt

文件分4行：

第1行是顺序表va的数据元素个数n，n<20。如果n<1或n>19则视为输入数据出错。

第2行是n个递增有序的数据元素，每个元素都是-999～999之间的十进制整数，元素之间用空格分开。

第3行是整数x，x是-999～999之间的十进制整数。

第4行是空行。

输出数据：文件output.txt

文件只有1行：

第1行是完成插入之后的顺序表n+1个有序元素的十进制整数，每个元素之间用空格分开。

如果输入数据出错，或者运行过程出错、问题无解等，则第1行输出字符串“ERROR”。

-The x sequence is inserted into the appropriate position on the table, in order to maintain the orderliness of the table. Input data: text file input.txt file 5 lines: Line 1 is the number of data elements in the order form va n, n < 20. If n < 1 or n>　19 is considered to input data error. The second line is the increasing order of n data elements, each element is a decimal integer between-999 to 999, separated by a space between the elements. Line 3 is an integer x, x is a decimal integer between-999 to 999. Line 4 is a blank line. Output data: file output.txt file has only one line: Line 1 is completed in order to insert a table n+1 after a decimal integer ordered elements, separated by a space between each element. If the input data error, or an error during the operation, the problem has no solution, etc., then the first line of the output string " ERROR" .