A Professor gives final test in its class. He shared the test and
wait until they are finished. When the Bell marks the end of the test that reads,
the exam papers were collected.
The professor saw no 1 sheets of money $ 100, which INCLUDE the
a sheet of paper, & reading: ONE DOLLAR for ONE number.
Next week, the Professor returns examination paper. And students who bribed
It gets a return, $ 70