diff --git a/12.cpp b/12.cpp
new file mode 100644
index 0000000..a7349cd
--- /dev/null
+++ b/12.cpp
@@ -0,0 +1 @@
+// 98
\ No newline at end of file
diff --git a/30.cpp b/30.cpp
new file mode 100644
index 0000000..6216bed
--- /dev/null
+++ b/30.cpp
@@ -0,0 +1 @@
+// 115
\ No newline at end of file
diff --git a/34.cpp b/34.cpp
new file mode 100644
index 0000000..ee48cf1
--- /dev/null
+++ b/34.cpp
@@ -0,0 +1 @@
+// 119
\ No newline at end of file