0l4r77 1l4r 2l4r7 3l4r77 4l4r
pc5r qc5r7 rc5r77 sc5r tc5r7
e35r7 f35r77 g35r h35r7 i35r77
3t6r77 4t6r 5t6r7 6t6r77 7t6r
sk7r tk7r7 uk7r77 vk7r wk7r7