define k() {forward(10)}
define r() {right(90)}
define l() {left(90)}

define al() {}
define ar() {}
define bl() {r()ar()k()l()al()k()al()l()k()ar()r()}
define br() {l()al()k()r()ar()k()ar()r()k()al()l()}
define cl() {r()br()k()l()bl()k()bl()l()k()br()r()}
define cr() {l()bl()k()r()br()k()br()r()k()bl()l()}
define dl() {r()cr()k()l()cl()k()cl()l()k()cr()r()}
define dr() {l()cl()k()r()cr()k()cr()r()k()cl()l()}
define el() {r()dr()k()l()dl()k()dl()l()k()dr()r()}
define er() {l()dl()k()r()dr()k()dr()r()k()dl()l()}
define fl() {r()er()k()l()el()k()el()l()k()er()r()}

forward(-160)left(90)forward(160)right(90)
pen(1)
fl()