¹              ²              ³                        ⁴                    ⁵               ⁶           ⁷                   ,         ⁸                ⁹         ¹⁰           ¹¹    ,                  ¹²                        ¹³                   ¹⁴               ¹⁵            ¹⁶             ¹⁷            ¹⁸                    ¹⁹               ²⁰                     ²¹          ²²              ²³                  ,    ²⁴                      ²⁵          