diff --git a/lab1/10215501406.txt b/lab1/10215501406.txt
new file mode 100644
index 0000000..46c91b3
--- /dev/null
+++ b/lab1/10215501406.txt
@@ -0,0 +1,13 @@
+#1
+for i in `seq 50000`;do echo $RANDOM | md5sum | cut -c 1-9 ;done > 1.txt
+sort -d 1.txt | uniq
+sort -n 1.txt | uniq
+sort -d 1.txt | uniq > 1_uniq1.txt
+sort -n 1.txt | uniq > 1_uniq1.txt
+sort -d 1.txt | uniq >> 1_uniq2.txt
+sort -n 1.txt | uniq >> 1_uniq2.txt
+
+#2
+for i in `seq 50000`;do echo $RANDOM | md5sum | cut -c 1-9 ;done > 2.txt
+grep 'computer' 2.txt
+grep -o 'computer' 2.txt | wc -l
\ No newline at end of file