L,D=map(int,raw_input().split())

ans=[0 for i in range(L+1)]
for i in range(6,L+1):
    grundies=[False for j in range(L)]
    for j in range(max((i-2*D)/3,1),(i+2)/3+1):
        for k in range(max(j+1,i-2*j-D),(i-j+1)/2):
            l=i-j-k
            num=ans[j]^ans[k]^ans[l]
            grundies[num]=True
    for a,used in enumerate(grundies):
        if not used:
            ans[i]=a
            break
if ans[L]==0:
    print "matsu"
else:
    print "kado"