C112122131333131323132313221323132313113313132313331323222331111   >>    C11212213133313132313231322132313231311331313231333132322233111   <<    C112122131333131323132313221323132313113313132313331323222331113   >>      C112122131333131323132313221323132313113313132313331323222331112   >>