diff --git a/lab1/10211900416.sh b/lab1/10211900416.sh
new file mode 100644
index 0000000..9671ef8
--- /dev/null
+++ b/lab1/10211900416.sh
@@ -0,0 +1,23 @@
+#!/bin/bash
+chmod +x ./work1.sh #add permisson to execute
+rm strings
+rm sort_by_ascii
+rm sort_by_num
+rm summ
+rm strings2
+for i in `seq 1000`; #50000 lines is too long to wait, choose 1000 lines
+do 
+	echo $RANDOM | md5sum | cut -c 1-9 ;
+done >> strings
+export LC_ALL=C
+sort -d strings | uniq -u > sort_by_ascii
+sort -n strings | uniq -u > sort_by_num
+cat sort_by_ascii >> summ
+cat sort_by_num >> summ
+
+for i in `seq 666`; #generate a file randomly
+do
+	echo $RANDOM | md5sum | cut -c 1-9;
+done >> strings2
+grep -o "de" strings2 | wc -w 
+