import sys
input = sys.stdin.readline

n=int(input())

ANS=0

for i in range(1,n+2):
    for j in range(i,n+1):
        k=i.bit_count()
        l=j.bit_count()

        if k==l:
            ANS+=i&j

            #if i&j!=0:
            #    print(i,j)

print(ANS)