-2 -2 -2 -2 -2 -2 -2 | -2 | -2 -2 -2 -2 -2 -2 -2 | -2 | -2 | -3' | -3' | -3 -4' | -4 -4' | -4 -4' -4 ob5 | +6 | -3 -3'' -3 -3 | +4 | ob4 | ob4 | +5 ob5 | +6 ob5 | +6 ob5 +6 +5 | +4 | +5 ob4 +5 +5 | -5 | -6' | -6' | -6 -7 | +7 -7 | +7 -7 +7 -6 | -9 | +9 -9 +9 | -10