a,b,c=map(int,input().split())
M=max(a,b,c)
count=0
for p in range(1,M+10):
    B=[a%p,b%p,c%p]
    if len(set(B))!=3:continue
    mx=max(B)
    mn=min(B)
    if B[1]==mx or B[1]==mn: 
        
        if p>M:
            print('INF')
            exit()
        else:
            count+=1
print(count)