C21221212121211331322331313331322132313331323132313231323222321   >>    C2122121212121133132233131333132213231333132313231323132322232   <<    C21221212121211331322331313331322132313331323132313231323222323   >>      C21221212121211331322331313331322132313331323132313231323222322   >>