Please choose the correct ending to complete the given sentence: Health: [header] How to put in colour contacts [title] Wash your hands thoroughly. [step] Before you insert your contact lenses, it's important to clean your hands to remove any dirt, hair, great, or bacteria that may have accumulated on them. If these contaminants are put into your eyes, they may cause serious irritation.

Ending1: [substeps] Ensure that all of your hands are clean before you insert your contacts. If your hands are completely dry, you can blow dry them before inserting them. Ending2: It's good to clean your lenses with your fingertips to avoid irritation. [title] Choose a lens solution and oil-based cleansers. Ending3: [substeps] Make sure your gloves are completely dry before putting the contacts on. If your hands are sweaty, this will make it harder for your contact lenses to apply colour. Ending4: [substeps] You should also put down a towel on your bathroom counter. This will help keep the area dry, and will give you a clean space to set out your contacts before you put them in your eyes.

Answer format: ending1/ending2/ending3/ending4