. , . , . , , , .
.
, 234 49. , , . , .
, (10 ), . 4 + 9 = 13. 13, 10 . , , . 13 10, 4 9, , ( ). 3 + 4 1 . 8. , 8. . , . : 234 + 49 = 283.
. , .
. , 16. . , , :
a = 10, b = 11, c = 12, d = 13, e = 14, f = 15.
, , . 0xA15 0xBC.
5 + . , = 12, 5 + 12 = 17. , 16. 16 17 1, , (16 ). 1 + B. 1 , B = 11, : 1 + 1 + 11 = 13. -: 16, , -: 13 D. , A . , 0xA15 + 0xBC = 0xAD1.