7but 8butb 9butbr acut bcutb

w2utb x2utbr y2ut z2utb 02utbr

ltvtbr mtvt ntvtb otvtbr ptvt

akwt bkwtb ckwtbr dkwt ekwtb

zaxtb 0axtbr 1axt 2axtb 3axtbr