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Gifts and math
1, two colors each, 2*3=6 kinds.

2. White 2 species, red 1 species, 3 species.

3. Two kinds of white, two kinds of red and three kinds of red

4. 2 species in white and 3 species in red 1 species.

5, white 1 species, red 2 species 2*3=6 species.

6. White 1 species, 3 kinds of red and 2 kinds of red.

Total number * * * 6+3+3+1+6+2 = 21species.