A := A + M[i] ; A := A - M[i] ; A := A + |M[i]| ; A := A - |M[i]| ; A := M[i] ; A := -M[i] ; A := |M[i]| ; A := - |M[i]| ; A := A*2 ; A := A div 2 ; A, R := (M[i]*R) div 2^39, (M[i]*R) mod 2^39 ; A, R := A mod M[i], A div M[i] ;
A := M[i] ; M[i] := A ; R := M[i] ; A := R ;
goto M[i].{left,right} ; if A >= 0 goto M[i].{left,right} ;