hola
-685 X N = R
-685 X 1 = -685
-685 X 2 = -1370
-685 X 3 = -2055
-685 X 4 = -2740
-685 X 5 = -3425
-685 X 6 = -4110
-685 X 7 = -4795
-685 X 8 = -5480
-685 X 9 = -6165
-685 X 10 = -6850
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