diff --git a/CSharp/AdventOfCode/RandomFiles/calibraciones.txt b/CSharp/AdventOfCode/RandomFiles/calibraciones.txt
new file mode 100644
index 0000000..1ba8437
--- /dev/null
+++ b/CSharp/AdventOfCode/RandomFiles/calibraciones.txt
@@ -0,0 +1,4 @@
+1abc2
+pqr3stu8vwx
+a1b2c3d4e5f
+treb7uchet
\ No newline at end of file