diff --git a/programs/arithmetic.chalk b/programs/basic_arithmetic.chalk
similarity index 100%
rename from programs/arithmetic.chalk
rename to programs/basic_arithmetic.chalk
diff --git a/programs/call.chalk b/programs/basic_call.chalk
similarity index 100%
rename from programs/call.chalk
rename to programs/basic_call.chalk
diff --git a/programs/basic_draw_number.chalk b/programs/basic_draw_number.chalk
new file mode 100644
index 0000000..2489faf
--- /dev/null
+++ b/programs/basic_draw_number.chalk
@@ -0,0 +1,3 @@
+fun main(): u0 {
+    draw_number(69, 1, 1);
+}
diff --git a/programs/empty.chalk b/programs/basic_empty.chalk
similarity index 100%
rename from programs/empty.chalk
rename to programs/basic_empty.chalk
diff --git a/programs/basic_if.chalk b/programs/basic_if.chalk
new file mode 100644
index 0000000..10a4c6b
--- /dev/null
+++ b/programs/basic_if.chalk
@@ -0,0 +1,17 @@
+fun main(): u0 {
+    var a = 3+3;
+    if(a) {
+        a = 0;
+    }
+
+    var b = 0;
+    if(b) {
+        b = 4;
+    }
+
+    if(b) {
+        b = 4;
+    } else {
+        b = 5;
+    }
+}
diff --git a/programs/basic_input.chalk b/programs/basic_input.chalk
new file mode 100644
index 0000000..c8ebd4c
--- /dev/null
+++ b/programs/basic_input.chalk
@@ -0,0 +1,4 @@
+fun main(): u0 {
+    var a = get_key();
+    var b = get_key();
+}
diff --git a/programs/basic_while.chalk b/programs/basic_while.chalk
new file mode 100644
index 0000000..9c52d59
--- /dev/null
+++ b/programs/basic_while.chalk
@@ -0,0 +1,8 @@
+fun main(): u0 {
+    var a = 5;
+    var b = 0;
+    while(a) {
+        b = b + 2;
+        a = a - 1;
+    }
+}
diff --git a/programs/comb_fib.chalk b/programs/comb_fib.chalk
new file mode 100644
index 0000000..f37d584
--- /dev/null
+++ b/programs/comb_fib.chalk
@@ -0,0 +1,14 @@
+fun main(): u0 {
+    var a = 1;
+    var b = 1;
+    while(233 - a) {
+        draw_number(a, 24, 13);
+        set_delay(30);
+        var temp = a;
+        a = b;
+        b = b + temp;
+        while(get_delay()){}
+        draw_number(temp, 24, 13);
+    }
+    draw_number(a, 24, 13);
+}
diff --git a/programs/comb_input.chalk b/programs/comb_input.chalk
new file mode 100644
index 0000000..2468495
--- /dev/null
+++ b/programs/comb_input.chalk
@@ -0,0 +1,13 @@
+fun main(): u0 {
+    var a = 1;
+    var b = 0;
+    var previous = 0;
+    draw_number(0, 24, 13);
+
+    while(a) {
+        previous = b;
+        b = get_key();
+        draw_number(previous, 24, 13);
+        draw_number(b, 24, 13);
+    }
+}