C2122121212121133132213231313231323132322331321123231333132223231   >>    C212212121212113313221323131323132313232233132112323133313222323   <<    C2122121212121133132213231313231323132322331321123231333132223233   >>      C2122121212121133132213231313231323132322331321123231333132223232   >>