diff --git a/1ano/2semestre/labi/tema04/datafiles/rand.csv b/1ano/2semestre/labi/tema04/datafiles/rand.csv
new file mode 100644
index 0000000..9aaeb18
--- /dev/null
+++ b/1ano/2semestre/labi/tema04/datafiles/rand.csv
@@ -0,0 +1,10 @@
+time;value
+1;41
+2;37
+3;3
+4;3
+5;37
+6;22
+7;91
+8;7
+9;25
diff --git a/1ano/2semestre/labi/tema04/src/csv_writer.py b/1ano/2semestre/labi/tema04/src/csv_writer.py
new file mode 100644
index 0000000..12743d1
--- /dev/null
+++ b/1ano/2semestre/labi/tema04/src/csv_writer.py
@@ -0,0 +1,16 @@
+import csv
+import random
+
+
+def main():
+    fout = open("rand.csv", "w", newline='')
+    writer = csv.DictWriter(fout, fieldnames=["time", "value"], delimiter=';')
+    writer.writeheader()
+
+    for i in range(1, 10):
+        writer.writerow({"time": i, "value": random.randint(1, 100)})
+
+    fout.close()
+
+
+main()