have a laugh guys

irishman applies for a job,has to pass a maths test,foreman asks him,without using numbers represent the number nine,so the irishman draws three trees,the foreman says whats this,the irishman says ave you no brain,tree and tree and tree is nine.allright fair enough says the foreman here is the next question,now represent the numbers ninety nine,so the irishman puts a smudge on each tree,the foreman replies cmon now what is this,the irishman replies,dirty tree and dirty tree and dirty tree is ninety nine,the foreman not wanting to hire him says ok,now make it one hundred,the irishman puts a little smudge on the bottom of each tree,the foreman says ok whats that,the irishman replies,dirty tree and a terd dirtytree and a terd dirty tree and a terd comes to one hunderd,lol