. nr iD \\n(iD+1
. sW "\\*(bY"
. ie \\n(sW>2 \{\
. ie ((\\*(bY>9n)&(\\*(bY<100n)) \{\
. ie ((0\\*(bY>9n)&(0\\*(bY<100n)) \{\
. nr O\\n(dP \\*(bY
. nr O\\n(dP 0\\*(bY
. \}
. el .nr O\\n(dP (\\n(sW)*\\n(fWu