2+2+1=10-3-6=3+4+3=8-5-3=10-0-2=5+2-3=7-2+3=3+6-5=2+2+1=10-3-6=3+4+3=8-5-3=10-0-2=5+2-3=7-2+3=3+6-5=2+2+1=10-3-6=3+4+3=8-5-3=10-0-2=5+2-3=7-2+3=3+6-5=科教兴国
