import sys
read=sys.stdin.buffer.read
readline=sys.stdin.buffer.readline
readlines=sys.stdin.buffer.readlines

l, d=map(int, readline().split())
g=[0]*(l+1)
for x in range(1, l+1):
    st=set()
    for a in range(1, x):
        for b in range(1, a):
            c=x-a-b
            if 0<c and c<b and a-c<=d:
                st.add(g[a]^g[b]^g[c])
    i=0
    while True:
        if i not in st:
            g[x]=i
            break
        i+=1
if g[l]:
    print("kado")
else:
    print("matsu")