¹   ,               ²              ³            ⁴                 ⁵           ⁶           ⁷                 ⁸             ⁹  ,             ¹⁰  ,             ¹¹         ¹²                      ¹³                 ¹⁴        ¹⁵             ¹⁶                                            ¹⁷             ¹⁸               ¹⁹                   ²⁰  ,            ²¹                 ²²              