diff --git a/Logic1.c b/Logic1.c
new file mode 100644
index 0000000..881aef9
--- /dev/null
+++ b/Logic1.c
@@ -0,0 +1,20 @@
+#include <stdio.h>
+
+int main(){
+	int i;
+	printf("Insert a number: ");
+	scanf("%d",&i);
+	if(i>=15 && i<=18){
+		printf("The number %d is valid\n",i);
+ 	}
+	else if(i>=39 && i<=44){
+		printf("The number %d is valid\n",i);
+        }
+	else if(i>=92 && i<=102){
+                printf("The number %d is valid\n",i);
+        }
+	else{
+		printf("The number %d is not valid\n",i);
+        }
+	return 0;
+}