Submission #3635675

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n,k=map(int,input().split())
c=0
s = k if k%2==1 else k//2
for i in range(s,n+1,s):
    s2 = k if i%k==0 else s
    n2 = (n-s2)//k+1
    c+=n2**2
print(c)
 
 
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n,k=map(int,input().split())
c=0
s = k if k%2==1 else k//2
for i in range(s,n+1,s):
    s2 = k if i%k==0 else s
    n2 = (n-s2)//k+1
    c+=n2**2
print(c)

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