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

DP=[0]*(L+1)

for i in range(1,L+1):
    flag=0
    for x in range(1,i):
        for y in range(x+1,i):
            z=i-x-y

            if 1<=x<y<z and z-x<=D:
                if DP[x]==DP[y]==DP[z]==0:
                    flag=1

    if flag:
        DP[i]=1
    else:
        DP[i]=0
                

if DP[-1]==0:
    print("matsu")
else:
    print("kado")