Describe what a person would need to do in terms of caloric input and output to: lose weight: gain weight:

If a person would need to "lose weight" then he/she need reduced the calories Input and increased the workout time and need to do Cardio as well as weight exercise with a balanced diet which includes high fiber and protein diet and it does not include more fat or that food which is considered as bad fats.

And, If a person wants to "Gain weight" then he/she required to increase the Calories Input and reduced its workout output and can eat a high level of good fat food keeping his health in mind.

i-i-i-i-i-i don't k-k-k-k-know.