In a 3×3 matrix the entries aij are randomly selected from the digits {0,1,2,,,9}with replacement. The probability that the numbers of the form xyz where x,y,z are the elements in each row will be divisible by 11 is 7K1.13K2109 then K1+k2=___.

In a 3×3 matrix the entries aij are randomly selected from the digits

1.	In a 3×3 matrix the entries aij are randomly selected from the digits {0,1,2,,,9}with replacement. The probability that the numbers of the form xyz where x,y,z are the elements in each row will be divisible by 11 is 7K1.13K2109 then K1+k2=___.
Answer» In a $3 \times 3$ matrix the entries $a_{i j}$ are randomly selected from the digits {0,1,2,,,9}with replacement. The probability that the numbers of the form xyz where x,y,z are the elements in each row will be divisible by 11 is $\frac{7^{K_{1}} {.13}^{K_{2}}}{10^{9}}$ then $K_{1} + k_{2} =$ ___.