-6 -6' -6 | +7 -8 +8 -9 | -6 | -6' -6 -6' | -5 -4 -3 -3''' | -6' | -6 -6' -6 | +7 -8 +8 -9 | -6 -6' | -7 -9 +8 | -9 -5 +6 -6' | -6