diff --git a/code/test/getchar.c b/code/test/getchar.c
new file mode 100644
index 0000000..071586f
--- /dev/null
+++ b/code/test/getchar.c
@@ -0,0 +1,9 @@
+#include "syscall.h"
+
+int main(){
+    do {
+        char c = GetChar();
+        PutChar(c);
+        PutChar('\n');
+    } while(1 == 1);
+}
diff --git a/code/test/getint.c b/code/test/getint.c
new file mode 100644
index 0000000..5dba854
--- /dev/null
+++ b/code/test/getint.c
@@ -0,0 +1,9 @@
+#include "syscall.h"
+
+int main(){
+    do {
+        int number = GetInt();
+        PutInt(number);
+        PutChar('\n');
+    } while(1 == 1);
+}
diff --git a/code/test/putint.c b/code/test/putint.c
new file mode 100644
index 0000000..5c47d11
--- /dev/null
+++ b/code/test/putint.c
@@ -0,0 +1,7 @@
+#include "syscall.h"
+
+int main(){
+    PutInt(10);
+    PutInt(110);
+    PutInt(007);
+}