- The task of erasing letters without being confused by colors 5×5 (20sheets)
- The task of erasing letters without being confused by colors 10×5 (20sheets)
- The task of erasing letters without being confused by colors 10×10 (20sheets)
- The task of erasing letters without being confused by colors 20×5 (20sheets)
The task of erasing letters without being confused by colors 5×5 (20sheets)
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The task of erasing letters without being confused by colors 10×5 (20sheets)
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The task of erasing letters without being confused by colors 10×10 (20sheets)
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The task of erasing letters without being confused by colors 20×5 (20sheets)
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