small comment:
silinder is spelled "cylinder"
baught is spelled "bought".
"there" is a pronoun; "their" is an adjective showing collective possesion; "they're" is a contraction for 'they are'.
example 1: There are multiple solutions to the problem.
example 2: George and Laura Bush left their pets behind at the White House during their trip abroad.
example 3: Bill and Hillary Clinton, they're Democrats.
These aren't just typos, since you repeated the mispellings twice within a short paragraph. An occasional period to separate sentences would be nice too. I'm not trying to be bitchy: there were just too many corrections to be made within such a short message.