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| x+9=12 | | x+9=11 | | x+9=10 | | x+9=9 | | x+9=8 | | x+9=7 | | x+9=6 | | x+9=5 | | x+9=4 | | x+9=3 | | x+9=2 | | x+9=1 | | x+8=20 | | x+8=19 | | x+8=18 | | x+8=17 | | x+8=16 | | x+8=15 | | x+8=14 | | x+8=12 | | x+8=11 | | x+8=10 | | x+8=9 | | x+8=8 | | x+8=7 | | x+8=6 | | x+8=5 | | x+8=4 | | x+8=3 | | x+8=2 | | x+8=1 | | x+7=20 |