from mobilechelonian import Turtle # импортируем модуль для рисования

t = Turtle()
t.speed(5)
t.pencolor('magenta')
def left_turn():
    for i in range(10):
        t.forward(15)
        t.left(9)

def petal():
        left_turn()
        t.left(90)
        left_turn()


petals_qty = int(input("How many petals ?"))
for _ in range(petals_qty):
    petal()
    t.left(180-round(180/petals_qty, 0))