6 4 .
6. 2 .
⭐
1 (): .., , ..
2 (): .., , ..
3 : .., * 3 1 .. , 1 , 3 1 .. ,* ..
4 : .., *1 .., 1 4 (1 .., 1 .., 1 .., 1 ..), 1 ..,* ..
1 4 .
1 :
2 :
3 : * 3 1 .. , 1 , 3 1 .. *
4 : *1 .., 1 4 (1 .., 1 .., 1 .., 1 ..), 1 ..*