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Ngā Raru Ōrite mai i te Rapu Tukutuku

Tohaina

4-1
Ko te uara pū o tētahi tau tūturu a ko a ina a\geq 0, ko -a rānei ina a<0. Ko te uara pū o 1 ko 1.
3
Tangohia te 1 i te 4, ka 3.