The female teacher
The female teacher wrote two numbers on the blackboard under each other and called on Adam to add them. Adam correctly added them and wrote the result 39 below the given numbers. The teacher erased the topmost number, and thus the remaining two numbers formed a new addition problem. This time Barbora wrote the correct result below the numbers. The teacher again erased the topmost number, the newly arisen addition problem was correctly solved by Cyril, and he got 96. Determine the two numbers which were originally written on the blackboard.
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