253-(33+53-22)=253-33-53+22=(253-53)-(33-22)=200-11=189
253-(33+53-22)=253-53-(33-22)=200-11=189
253-(33+53-22)=253-53-(33-22)=200-11=189
253-(33+53-22)=253-33-53+22=220-53+22=220-31=189
=(253-53)-(33-22)=189