C11113313331323211211113313231333132313231323112331323132313231111   >>    C1111331333132321121111331323133313231323132311233132313231323111   <<    C11113313331323211211113313231333132313231323112331323132313231113   >>      C11113313331323211211113313231333132313231323112331323132313231112   >>