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| 13x-15=20 | | 13x-15=19 | | 13x-15=18 | | 13x-15=17 | | 13x-15=16 | | 13x-15=15 | | 13x-15=14 | | 13x-15=13 | | 13x-15=12 | | 13x-15=11 | | 13x-15=10 | | 13x-15=9 | | 13x-15=8 | | 13x-15=7 | | 13x-15=6 | | 13x-15=5 | | 13x-15=4 | | 13x-15=3 | | 13x-15=2 | | 13x-15=1 | | 13x-14=20 | | 13x-14=19 | | 13x-14=18 | | 13x-14=17 | | 13x-14=16 | | 13x-14=15 | | 13x-14=14 | | 13x-14=13 | | 13x-14=12 | | 13x-14=11 | | 13x-14=10 | | 13x-14=9 |