3753.Maxim and Matrix

Time Limit: 1s Memory Limit: 256MB

Maxim loves to fill in a matrix in a special manner. Here is a pseudocode of filling in a matrix of size (m+1) \times (m+1):

3753_1.png

Maxim asks you to count, how many numbers m (1 \le m \le n) are there, such that the sum of values in the cells in the row number m+1 of the resulting matrix equals t.

Expression (x xor y) means applying the operation of bitwise excluding "OR" to numbers x and y. The given operation exists in all modern programming languages. For example, in languages C++ and Java it is represented by character "^", in Pascal - by "xor".

Input Format(From the terminal/stdin)

A single line contains two integers n and t (1 \le n,t \le 1012,t \le n+1).

Please, do not use the %lld specifier to read or write 64-bit integers in C++. It is preferred to use the cin, cout streams or the %I64d specifier.

Output Format(To the terminal/stdout)

In a single line print a single integer - the answer to the problem.

Sample Input 1

Copy
1 1
 · \n

Sample Output 1

Copy
1
 \n

Sample Input 2

Copy
3 2
 · \n

Sample Output 2

Copy
1
 \n

Sample Input 3

Copy
3 3
 · \n

Sample Output 3

Copy
0
 \n

Sample Input 4

Copy
1000000000000 1048576
             ·       \n

Sample Output 4

Copy
118606527258
            \n

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