1、13-408=405-2=68+51=17+539+61=10-369=47+1475+468-255=21-3663-2=729-3=67-588+12=92-40426-4=205-4=306-5=8+6=3+2154-1442+71+29=366-2=7+69=37-6486-6=162-8=58-35=8-3=9-65=85-417-59-1=67-24279+26=64+531-3=1-2=62-79-4=8+69-5=55-162-3=56-28-56=64-1015-4268+1830+32-5=23+369-308+8=80-34+10=50-54-2=287-3=6+74=5
2、+41=30+7213+582-1=5-22=2+39=92-687+1842-858-49+27=5+25=78+569-47=99-3551+672+279-356-1=639+78=2+50=42+261+5612+72447+14-20=497+8=13+217+162-6=5+31=4+3=8-54=123-1=8-2=72+31-7=50-93-8=9+4888-258+36=98-3266+528-5643+79+47=58+43=6-3=8+48=26-217+5=16+629+14=26-6379-9248+44=88+1422+89-48=6-28=1+1=21+99+5=
3、5+72=42+519+942+397+355+0=61-78-32=549+21=9-43=99-942+975-322+0=4+55=1+27=92-368-390-731-3265-94-25=4+69=97-51582-717+147-5=8+21=4+31=87+282-2889-92+60=25-125+23=54-52+29=5+56=357-2=7-15=3+42=7-6=60-52+36=13+65=7-427+47=73+531+95+8=105-1=5-8=67-981-334-2215+54=15-25-5=33-2451-6415-208+28=40-57+20=21
4、-1=20+33-4=8+16=1496-364-18=39+430+76-22=76-287-83+8=56-152+94=9-19=46-89+83=8+4958-918+973-222-489-390-437+63+31=63+591-1661-3677-759-670-42-17=5-14=64-58+411+7290+5618-64+1=2+92=5+69-16=9+20=58-157-4=5-188+978-486-7=2-4=60-222+1055+86-10=57+52-1072+336+867-12+13=6+26=88+427+87=7+62=80+459+17=91-768-2885-928-1525+82-0=9+54=1+9=2-10=32+2119+857+84+9=7+248+41=9-8=3+5=4+36=36+7283-46-536-51+90=23-910+1885+365+68=44+35+60=9+85=4-22=12+4274-218+18=76-2478+32+43=9+63=6-18=75-98-30=38+96-19=31+576-463-307+4=84-620+43+89=50+1279+328-8=18-1014+356+38=78+249-24=7