vlab wlabg xlabg1 ylab zlabg
kcbbg lcbbg1 mcbb ncbbg ocbbg1
92bbg1 a3bb b3bbg c3bbg1 d3bb
ytcb ztcbg 0tcbg1 1tcb 2tcbg
nkdbg okdbg1 pkdb qkdbg rkdbg1