i2sbf3 h2sbf g2sb f2sbf3 e2sbf
tbsbf sbsb rbsbf3 qbsbf pbsb
4krb 3krbf3 2krbf 1krb 0krbf3
fuqbf3 euqbf duqb cuqbf3 buqbf
q3pbf p3pb o3pbf3 n3pbf m3pb