C21221212121211331322331313331322132313331323132313231323223331   >>    C2122121212121133132233131333132213231333132313231323132322333   <<    C21221212121211331322331313331322132313331323132313231323223333   >>      C21221212121211331322331313331322132313331323132313231323223332   >>