Try them out for yourself! This arrangement is easy to cause a visual confusion.
The phonetic korean hangul keyboard system of claim 11 wherein the korean consonants distributed along the left upper key faces are , , , , and in a left-to- right order, wherein the korean consonants distributed along the left middle key faces are , , , , and , wherein , , , and correspondingly share their key faces with , , , and such that the respective , , , and are to be used with a shift key.