diff --git a/.gitignore b/.gitignore
index 092f3c4..ed2714e 100644
--- a/.gitignore
+++ b/.gitignore
@@ -107,3 +107,5 @@ dkms.conf
 *.out
 *.app
 
+
+core
\ No newline at end of file
diff --git a/chapter3/print2.c b/chapter3/print2.c
new file mode 100644
index 0000000..6ccefcd
--- /dev/null
+++ b/chapter3/print2.c
@@ -0,0 +1,14 @@
+#include <stdio.h>
+
+int main(int argc, char* argv[]){
+	unsigned int un = 3000000000;
+	short end = 200;
+	long big = 65537;
+	long long veryBig = 12345678908642;
+	printf("un = %u, un not %d\n", un, un);
+	printf("end = %hd, end not %d\n", end, end);
+	printf("big = %ld, big not %hd\n", big, big);
+	printf("veryBig = %lld, veryBig not %ld\n", veryBig, veryBig);	
+
+	return 0;
+}