b=int(input())
c=int(input())
import turtle
t=turtle.Turtle()
a=turtle.Turtle()
t.shape("turtle")
t.color("yellow","yellow")
t.begin_fill()
for i in range(5):#for循环结构,range()函数，迭代器，list,tuple...
t.forward(c)
t.right(144)
t.forward(c)
t.left(72)
t.end_fill()
turtle.down()
