diff --git a/i1.txt b/i1.txt
new file mode 100644
index 0000000..e69de29
diff --git a/i2.txt b/i2.txt
new file mode 100644
index 0000000..e69de29
diff --git a/k1.txt b/k1.txt
new file mode 100644
index 0000000..e69de29