list operation in python

if __name__ == '__main__':

    N = int(input())

    list=[]

    list.insert(0,5)

    list.insert(1,10)

    list.insert(0,6)

    print(list)

    list.remove(6)

    list.append(9)

    list.append(1)

    list.sort()

    print(list)

    list.pop()

    list.reverse()

    print(list)