Write a function that will take three positive integers as inputs, and return their least common multiple. The least common multiple is the smallest positive integer that is divisible by all three numbers. Do not use any built-in function other than mod. In the Cartesian 2D plane, a point is represented by its x,y coordinates. Write the function IsInside which will take two inputs x and y, and determine whether the point represented by x,y is located inside a circle with radius R=2. Remember that to be located inside the circle, x,y should satisfy x + y R. Write a function that will take three positive integers as inputs, and return their least common multiple. The least common multiple is the smallest positive integer that is divisible by all three numbers. Do not use any built-in function other than mod. In the Cartesian 2D plane, a point is represented by its x,y coordinates. Write the function IsInside which will take two inputs x and y, and determine whether the point represented by x,y is located inside a circle with radius R=2. Remember that to be located inside the circle, x,y should satisfy x + y R.