A factory manufactures two types of gadgets, regular and premium. Each gadget requires the use of two operations, assembly and finishing, and there are at most 120 hours available for each operation. A regular gadget requires 1 hour of assembly and 2 hours of finishing, while a premium gadget needs 3 hours of assembly and 1 hour of finishing. Due to other restrictions, the company can make at most 70 gadgets a week. Let x be the number of regular gadgets, and let y be the number of premium gadgets. Enter the inequality for each restriction. Each inequality should be of the form ax + by <= c, where a, b, c are positive integers with no common factor other than 1.