[ Kev Pabcuam ] siv: [ Ntawv nyeem ]

☞ f ≔ Cov ntaub ntawv tshiab: (Qhov chaw nyob /tmp: ‘x.ctr’).
f sau ntawv: ‘☞ x ≔ 123.’.
Kev Pabcuam siv: (Qhov chaw nyob /tmp: ‘x.ctr’).
✎ sau ntawv: x, tsum.
123