diff --git a/src/file01.rs b/src/file01.rs
new file mode 100644
index 0000000..1111111
--- /dev/null
+++ b/src/file01.rs
@@ -0,0 +1,3 @@
+pub fn f01() {
+    println!("file 01");
+}
diff --git a/src/file02.rs b/src/file02.rs
new file mode 100644
index 0000000..2222222
--- /dev/null
+++ b/src/file02.rs
@@ -0,0 +1,3 @@
+pub fn f02() {
+    println!("file 02");
+}
diff --git a/src/file03.rs b/src/file03.rs
new file mode 100644
index 0000000..3333333
--- /dev/null
+++ b/src/file03.rs
@@ -0,0 +1,3 @@
+pub fn f03() {
+    println!("file 03");
+}
diff --git a/src/file04.rs b/src/file04.rs
new file mode 100644
index 0000000..4444444
--- /dev/null
+++ b/src/file04.rs
@@ -0,0 +1,3 @@
+pub fn f04() {
+    println!("file 04");
+}
diff --git a/src/file05.rs b/src/file05.rs
new file mode 100644
index 0000000..5555555
--- /dev/null
+++ b/src/file05.rs
@@ -0,0 +1,3 @@
+pub fn f05() {
+    println!("file 05");
+}
diff --git a/src/file06.rs b/src/file06.rs
new file mode 100644
index 0000000..6666666
--- /dev/null
+++ b/src/file06.rs
@@ -0,0 +1,3 @@
+pub fn f06() {
+    println!("file 06");
+}
diff --git a/src/file07.rs b/src/file07.rs
new file mode 100644
index 0000000..7777777
--- /dev/null
+++ b/src/file07.rs
@@ -0,0 +1,3 @@
+pub fn f07() {
+    println!("file 07");
+}
diff --git a/src/file08.rs b/src/file08.rs
new file mode 100644
index 0000000..8888888
--- /dev/null
+++ b/src/file08.rs
@@ -0,0 +1,3 @@
+pub fn f08() {
+    println!("file 08");
+}
diff --git a/src/file09.rs b/src/file09.rs
new file mode 100644
index 0000000..9999999
--- /dev/null
+++ b/src/file09.rs
@@ -0,0 +1,3 @@
+pub fn f09() {
+    println!("file 09");
+}
diff --git a/src/file10.rs b/src/file10.rs
new file mode 100644
index 0000000..aaaaaaa
--- /dev/null
+++ b/src/file10.rs
@@ -0,0 +1,3 @@
+pub fn f10() {
+    println!("file 10");
+}
