$'d' -(!!)()()# $'i' -i2mc2c(!e!)1a(!!)0()p()z1sc(!!)(!d!)()p(e)# $'p' -(!!)-()o1\ / s ^ | # \g0{d}-/ $'f' -(!!)(!c!)(c)()2mc2c(!z!)(!y!)(!x!)(y)(){p}(!P!)(c)()()9q# $'main' #-[00000]{d}p--\ >{f}-0- | | \ >ep-{d}-/ \ || \-@ \-1a/ \-{i}/