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: 4 , 4 .
4. 3 2 .
1 (): .., * 3 .., 1 .., * 3 .., ..
2 (): .., * 3 .., 1 .., 3 , * 3 .., ..
3 : .., * 3 .., 3 , , * 3 .., ..
4 : .., * 3 .., 1 , * 3 .., ..
1 4 .