i1rpqc h1rpq g1rp f1rpqc e1rpq
tarpq sarp rarpqc qarpq parp
4jqp 3jqpqc 2jqpq 1jqp 0jqpqc
ftppqc etppq dtpp ctppqc btppq
q2opq p2op o2opqc n2opq m2op