C11113313331323211211113313231333132313231323112331323132322121   >>    C1111331333132321121111331323133313231323132311233132313232212   <<    C11113313331323211211113313231333132313231323112331323132322123   >>      C11113313331323211211113313231333132313231323112331323132322122   >>