M= |a+b|-|b-1|-|a-c|-|1-c|
=(-a-b)-(1-b)-(c-a)-(1-c)
=-a-b-1+b-c+a-1+c
=-2
(m+1)=-1
2009乘以(m+1)的2009次方+1+=-2009+1=-2008