a=5 b=8 c=12 ss=(a+b+c)/3 sb="{:.3f}".format(ss) print(sb) s=39 aa=int(s/a) ab=s%a print(aa,ab) bb=int(s/b) bc=s%b print(bb,bc) cc=int(s/c) cd=s%c print(cc,cd)