resubmission

programs/a1/main.c

@@ -6,7 +6,7 @@ int main(void) {
     printf("Input integer: ");
     scanf("%d", &n);
 
-    if (n <= 10 && n > 0) {
+    if (n < 10 && n > 0) {
         printf("%d is one digit natural number.\n", n);
     } else {
     	printf("%d is not one digit natural number.\n", n);