L,D=map(int,input().split())
dp=[0]*(L+1)
for i in range(1,L+1):
    st={10000}
    for j in range(1,i):
        for k in range(1,j):
            l=i-j-k
            if l==j or l==k:
                continue
            if l<=0:
                continue
            if max(j,k,l)-min(j,k,l)>D:
                continue
            st.add(dp[j]^dp[k]^dp[l])
    lt=list(st)
    list.sort(lt)
    for j in range(len(lt)):
        if lt[j]!=j:
            dp[i]=j
            break
if dp[L]:
    print('kado')
else :
    print('matsu')