: Write a while-loop to let the snail go up and down. The loop should terminate when the snail is solidly on top of the well. Inside the loop, print the detail of the simulation so we can track the simulation. It is possible that the snail climbs up 1 cm and slides down 2 cm in the same minute. That is why the location of the snail can be a negative number. You should test this part completely before moving to the next step