Umatshini wokukhetha iphini yePIN yenzelwe ukwakha amandla kwizihlunu ze-pectoral. Umthambo ubandakanya ukuvula nokuvala iingalo ngokutyhala ngokuchasene nabathengisi ababini, elinento ethembekileyo. Ukuxhathisa kunikezelwa sisitaki semilinganiselo esenza ukuba ilungiswe kakuhle ihambelana nohlobo ngalunye lomsebenzisi.UKhetho ngoku kulula kwintambo entsha ye-stack ene-jam iphakathi kwe-jam i-jam i-jam i-jam i-jam i-jam i-jam i-jam i-jam i-jam iphakathi kwe-jam i-jam i-jam i-jam i-jam i-jam iphakathi kwe-jam i-jam i-jam i-jam iphakathi kwe-jam i-jam i-jam i-jam iphakathi kwesitayile esiphakathi.