C1111233133313231133133313331333132313231333121111132313231323132212331   >>    C111123313331323113313331333133313231323133312111113231323132313221233   <<    C1111233133313231133133313331333132313231333121111132313231323132212333   >>      C1111233133313231133133313331333132313231333121111132313231323132212332   >>