a,b,c=map(int,input().split())
M=max(a,b,c)
z=0
for p in range(1,M+9):
    B=[a%p,b%p,c%p]
    if len(set(B))!=3:continue
    if B[1]==max(B) or B[1]==min(B): 
        if p>M:print('INF');exit()
        else:z+=1
print(z)