There are 'n' coins kept on the table, numbered from 0 to 'n-1'. Initially, each coin is kept tails up. You have to perform two types of operations : 1) Flip all coins numbered between A and B inclusive. This is represented by the command: 0 A B 2) Answer how many coins numbered between A and B inclusive are heads up. This is represented by the command 1 A B

Input: The first two lines contain two integers, N and Q.The first line after inputting N and Q has to be of form (1).Each of the next Q lines are of the form (2) as mentioned above. Output: Output 1 line for each of the queries of the form 2 containing the required answer for the corresponding query just after the query. 7 3 0 3 5 1 0 6 3 <-- this is the first output 1 3 4 2 <-- this is output