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

ans=[0,0,0,0,0,0]
for i in range(6,L+1):
    grundy=0
    for j in range(1,i+1):
        for k in range(j+1,i+1):
            l=i-j-k
            if l<=k: 
                continue
            if l-j > D:
                continue
            num=ans[j]^ans[k]^ans[l]
            if( num == 0 ):
                grundy=1
    ans.append(grundy)
if ans[L]==0:
    print "matsu"
else:
    print "kado"