caffeine$\_$amount is read from input. Write multiple if statements:

If caffeine$\_$amount is greater than $12,$ then output 'I can go on a walk.$\text{'}$

If caffeine$\_$amount is greater than $43,$ then output 'I can run a marathon.$\text{'}$

If caffeine$\_$amount is less than $2,$ then output 'I am tired.$\text{'}$