p: 100p p3+2= 53+1=42+1=32+2=44+4=83+3=61+1=20+3=30+0=05+5=105+2=79+1=108+2=10p p =p p5 _____ 3p p4 _____ 1p p2 _____ 3p p4 _____ 4p p7 ___p