n=int(input())
g=0
for p in range(2,10):
  for a in range(p):
    for b in range(p):
      if a!=b:
        f=lambda x:x**2-n*a*x-n*b-1
        g+=0>f(p)
L,R=10,10**9
X=10**10
for a in range(10):
  for b in range(10):
    if a!=b:
      f=lambda x:x**2-n*a*x-n*b-1
      d=(n*a)**2-4*(-n*b-1)
      if d>0:
        if (n*a)%2==0:
          ok=(n*a)//2
          ng=-X
          while abs(ok-ng)>1:
            m=(ok+ng)//2
            if 0>f(m):
              ok=m
            else:
              ng=m
          l=ok
          ok=(n*a)//2
          ng=X
          while abs(ok-ng)>1:
            m=(ok+ng)//2
            if 0>f(m):
              ok=m
            else:
              ng=m
          r=ok
        else:
          if f((n*a-1)//2)>0:
            continue
          ok=(n*a-1)//2
          ng=-X
          while abs(ok-ng)>1:
            m=(ok+ng)//2
            if 0>f(m):
              ok=m
            else:
              ng=m
          l=ok
          ok=(n*a+1)//2+1
          ng=X
          while abs(ok-ng)>1:
            m=(ok+ng)//2
            if 0>f(m):
              ok=m
            else:
              ng=m
          r=ok
        g+=max(min(r,R)-max(l,L)+1,0)
print(g)