Given integer N, find the smallest larger number that doesn't have the same two digits in consecutive positions.
Example: N = 76.
Answer: 78. Explanation -> 77 is the smallest larger number after 76 but hence we havedigit 7 in two consecuitive positions, that doesn't satisify our condition.
Note:N=766 -> answer should be 767, the number digits don't need to be unique, only they have not to be in consecutive positions.