○1→2→3→1
:m4_corner_1::m4_lc_1::m4_lc_3::m4_corner_4:
:m4_corner_2::m4_straight_1::m4_straight_1::m4_corner_3:
×1→1→…(Endless!)
:m4_corner_1::m4_lc_1::m4_lc_3::m4_lc_1::m4_lc_3::m4_corner_4:
:m4_corner_2::m4_straight_1::m4_straight_1::m4_lc_1::m4_lc_3::m4_corner_3: