暴力枚举,跟c差不多,但要注意不要只考虑个位数加减
fn=[6,2,5,5,4,5,6,3,7,6]
x=int(input())-4
res=0
def count(num):
if num==0:
return fn[0]
count=0
while num>0:
count+=fn[num%10]
num//=10
return count
for a in range(1000):
for b in range(1000):
c=a+b
t=count(a)+count(b)+count(c)
if t==x:
res+=1
print(res)