a=[1,5,6,8,10]
b=len(a)*[None]
k=int(raw_input()) #rotation factor
b[:]=a[(k-1):]
#print b
b[len(b):]=a[0:len(a)-len(b)]
#b is rotated array
#print b
s=int(raw_input())#element to find
t=b.index(s)
print t
YT1bMSw1LDYsOCwxMF0KYj1sZW4oYSkqW05vbmVdCms9aW50KHJhd19pbnB1dCgpKSAjcm90YXRpb24gZmFjdG9yCmJbOl09YVsoay0xKTpdCiNwcmludCBiCmJbbGVuKGIpOl09YVswOmxlbihhKS1sZW4oYildCiNiIGlzIHJvdGF0ZWQgYXJyYXkKI3ByaW50IGIKcz1pbnQocmF3X2lucHV0KCkpI2VsZW1lbnQgdG8gZmluZAp0PWIuaW5kZXgocykKcHJpbnQgdAoK