-2 -3' -4' -4 | -2 -3' -4' -4 +6 -4 | +6 -4 -3' -4 -6 -6' -6 od7 | +7 od7 +8 +8 +8' +8 -10 | ob1 -2 -3' +4 | ob1 -2 -3' +4 -3' -2' | -3' -2' -1 -3 -2 -2 ob2 | ob2 -1' -1' -1 | -2 -3' -4' -4 | -2 -3' -4 ob4 | -3'' -2 -2' -2 -3'' | -2 -2' -1 -3' ob2 -3' | -5 +5 | +5 -5 +5 ob4 | ob4 ob4 -5 -4 +4 -3' | -3' +4 -4 | +4 | -2 -3' -4 ob4 | -3' +4 -4 -4 -4 -4 -4 -4 -4 -4