cd /bin
pwd

cd /bin/../
pwd

cd /
pwd
cd /bin
pwd

cd /
pwd
cd //bin
pwd

cd //
pwd
cd //bin
pwd

cd ///
pwd
cd ///bin
pwd

cd ////
pwd
cd ////bin
pwd

cd /////
pwd
cd /////bin
pwd

cd //////
pwd
cd //////bin
pwd

cd ///////
pwd
cd ///////bin
pwd