modify starter

starter.c

@@ -1,6 +1,20 @@
+/*+-+-+-+-+-+ +-+-+-+-+-+*/
+/*|h|e|l|l|o| |w|o|r|l|d|*/
+/*+-+-+-+-+-+ +-+-+-+-+-+*/
+
 #include <stdio.h>
 
 int main(void) {
+
+  // ask for a string
+  char greeting[20];
+  scanf("hello %s", greeting);
+
+  // output strings
   printf("hello world\n");
+  printf("This is a string %s\n", greeting);
+  printf("this is a float %+5.2f\n", 3.14);
+  printf("this is a float %+5.2f\n", -3.14);
+  printf("this is a decimal %+d\n", 3);
   return 0;
 }