1Element #0 20: 0 1 3 4 3Element #1 40: 1 2 4 5 5Element #2 60: 3 4 6 7 7Element #3 80: 4 5 7 8 9========= Face restriction; marker: 4 ======== 10num_elem: 2, elem_size: 2, num_dof: 9 110: 3 0 120: 6 3 13========= Face restriction; marker: 2 ======== 14num_elem: 2, elem_size: 2, num_dof: 9 150: 2 5 160: 5 8 17========= Face restriction; marker: 1 ======== 18num_elem: 2, elem_size: 2, num_dof: 9 190: 0 1 200: 1 2 21========= Face restriction; marker: 3 ======== 22num_elem: 2, elem_size: 2, num_dof: 9 230: 7 6 240: 8 7 25