a=input()
k=0
for i in range(len(a)-1,-1,-1):
    if a[i]=='!':
        k=k+1
n=int(a[0:len(a)-k-1:1])
f=1
if n%k==0:
    for i in range(0,n//k):
        f=f*(n-i*k)
else:
    for i in range(0,n//k+1):
        f=f*(n-i*k)
print(f)