zor4t 0or4td 1or4 2or4t 3or4td

ofs4td pfs4 qfs4t rfs4td sfs4

d6s4 e6s4t f6s4td g6s4 h6s4t

2wt4t 3wt4td 4wt4 5wt4t 6wt4td

rnu4td snu4 tnu4t unu4td vnu4