#mkdir 200{7,8,9}/{0{1,2,3,4,5,6,7,8,9},1{1,2}}

mkdir: 2007: No such file or directory
mkdir: 2007: No such file or directory
mkdir: 2007: No such file or directory
mkdir: 2007: No such file or directory
mkdir: 2007: No such file or directory
mkdir: 2007: No such file or directory
mkdir: 2007: No such file or directory
mkdir: 2007: No such file or directory
mkdir: 2007: No such file or directory
mkdir: 2007: No such file or directory
mkdir: 2007: No such file or directory
mkdir: 2008: No such file or directory
mkdir: 2008: No such file or directory
mkdir: 2008: No such file or directory
mkdir: 2008: No such file or directory
mkdir: 2008: No such file or directory
mkdir: 2008: No such file or directory
mkdir: 2008: No such file or directory
mkdir: 2008: No such file or directory
mkdir: 2008: No such file or directory
mkdir: 2008: No such file or directory
mkdir: 2008: No such file or directory
mkdir: 2009: No such file or directory
mkdir: 2009: No such file or directory
mkdir: 2009: No such file or directory
mkdir: 2009: No such file or directory
mkdir: 2009: No such file or directory
mkdir: 2009: No such file or directory
mkdir: 2009: No such file or directory
mkdir: 2009: No such file or directory
mkdir: 2009: No such file or directory
mkdir: 2009: No such file or directory
mkdir: 2009: No such file or directory