Then push it back, and pour water from cylinder B to cylinder A for the second time, so that the water in cylinder A doubles, and the water in cylinder A is 24L after doubling, so it is 12L before the second pouring, and 48L and 48- 12=36L before the second pouring.
When pouring water from cylinder A to cylinder B for the first time, the water in cylinder B increased by 1 times, and the water in cylinder B increased by 1 times, reaching 36L, so it was naturally half of 18L before the first pouring, and the water in cylinder A was also 18L, so it was 65438 before the first pouring.
The result is 30L for cylinder A and 18L for cylinder B..