This seems to work:

If (a = B) && (a = c) && (a = d) && (a = e) && (a = f) && (a = g) &&(a = g) && (a = i) && (a = j) && (a = k) && (a = l) THEN
m = 1
else
m = 0
endif

But is this the only way to do this?

Thanks