+8' -8 od7 +7 | -7 | -7 | +8 +8' | -8 | od7 +7 | -7 | ob6 -7 | ob6 -6 | -6' | +6 | ob5 | -5 +5 | ob4 -4 | -4' +4 | -3 -3' -3 | -6' +6 ob5 -5 | +5 | -8 -8 | -8 -8 | -5 | +5 ob4 -4 -4' | +4 -3' | -3' | +4 -4 | -4 +4 -3 | -3'' -2 | -9 +8 +8' | -8