C1111233133313231133133313133313331323133313221211113313231323112321   >>    C111123313331323113313331313331333132313331322121111331323132311232   <<    C1111233133313231133133313133313331323133313221211113313231323112323   >>      C1111233133313231133133313133313331323133313221211113313231323112322   >>