diff --git a/p3/data/exp4/fase1.dat b/p3/data/exp4/fase1.dat
new file mode 100644
index 0000000..491e0f1
--- /dev/null
+++ b/p3/data/exp4/fase1.dat
@@ -0,0 +1,11 @@
+0	20.6
+30	20.4
+60	20.6
+90	20.6
+120	20.6
+150	20.8
+180	20.8
+210	20.8
+240	20.8
+270	20.8
+300	21