1-+ +3+ 11+ 1+5+1 26+ 2 63 111 1- 3 5 631 11111+=+=+=+=-=+=-=+=+=+=-=-=-=-=-=+=-=+=-=+=1-=-=+=+=+= 1-=-=+=-=-=+=+=+=+=+=1+=-=+=+=+=2-=-=_=-=+=+= 10-=+=+=-=+=-=+=+=-=-=+=-=-= 1 =1-2-6+0.75=+=2-=1=5=6=3=+=+=+= =1=+=+=+=1=+=+=1=1-+=5-=1= 111111=+=()=11=()=()=+-=-+=+=-(+)=+()=-(+)=-(+)=-+=-+-=+-=-(+)=+=+=+=+= 1 15 1 1 - + =()5 6() 11-1-+ -6() = =()= =()= = = =-=+(11) = 4(7.23) =75= 2+1+3=75= 2+1+3=483= 613=17(54.5) 5+6+3-()=-(+)=+ = +=-+=