I'm starting to see that in reality I am thin and I want to start exercising. I have read that its important to workout for 5 days a week. Can someone give me an exercise plan up to 5 days of training to increase muscle mass, strength and tone? I want to build my arms, shoulders, legs, chest and back. Please share me if you have any idea.

Basically I am skinny and need to put on weight. If there are weight building supplements for starters, please recommend.