1.1 ! maekawa 1: M: { 5 10 : ! 2: 1 1 1 1 0 0 0 0 0 0 ! 3: 1 0 0 0 1 1 1 0 0 0 ! 4: 0 1 0 0 1 0 0 1 1 0 ! 5: 0 0 1 0 0 1 0 1 0 1 ! 6: 0 0 0 1 0 0 1 0 1 1 ! 7: }