Common typos: xtrrxxrrxxtrzxtrrcxtrrsxtrrdxtrrxztrrxctrrxstrrxdtrrxxrrrxxyrrxx5rrxxgrrxxfrrxx6rrxxterxxttrxxt4rxxtfrxxtdrxxt5rxxtrexxtrtxxtr4xxtrfxxtrdxxtr5xtxrrxxrtrzxxtrrxzxtrrcxxtrrxcxtrrsxxtrrxsxtrrdxxtrrxdxtrrxxztrrxxctrrxxstrrxxdtrrxxrtrrxxtrrrxxytrrxxtyrrxx5trrxxt5rrxxgtrrxxtgrrxxftrrxxtfrrxx6trrxxt6rrxxterrxxtrerxxttrrxxtrtrxxt4rrxxtr4rxxtrfrxxtdrrxxtrdrxxtr5rxxtrrexxtrrtxxtrr4xxtrrfxxtrrdxxtrr5xxxtrr