Revision history of "is valid positive integer" (Z11129)
Leswaku uhambanisa mindzulamiso: thlava eka swifungu swa xirhendzevutana swa mindzulamiso leyi hambanaka ivi u thlava bhatheni leyi nge "Enter" eka Khibhodi ya wena kumbe bhatheni leyi kombiweke ehansi.
Swihlamuseri: (sweswi) = kuhambana na ndzulamiso wa sweswinyana, (Swo hetelela) = kuhambana na ndzulamiso lowu tlhandlamaka lowu, Tsan = ndzulamiso lowu tsanana.