Take out $$4$$ digits from $101112131415$ to make the rest of the digits into a new $8-$digit number without changing the order of digits. The least possible value of the new number is~\uline{~~~~~~~~~~}~. 
Overseas Competition->Knowledge Point->Counting Modules->Permutations and Combinations->Combinations
To make it the least, you should make the digit in the first place as small as possible. Thus the $$2$$, $$3$$, $4$ and $$5$$ should be taken out. 