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- 4,475 번개달팽이
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- CT Lite+
- iOS Spil: Hjernegymnastik Ved: Igor Patrikeev
- Gratis
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- Point: 1 + 0 Version: 2.0 Puzzle helps to learn Cartesian coordinate system (x,y) and practice to calculate sums over the line (the very first step to understanding integration). Sound: switch Ring/Silent ... ⥯