Common typos: rvxxvxxrxxrvzrvxcrvxsrvxdrvxxevxxtvxx4vxxfvxxdvxx5vxxrcxxrbxxrfxxrgxxrvzxrvcxrvsxrvdrxvxxvrxxrxvzxrvxxzrvxcxrvxxcrvxsxrvxxsrvxdxrvxxdrvxxervxxrevxxtrvxxrtvxx4rvxxr4vxxfrvxxrfvxxrdvxx5rvxxr5vxxrcvxxrvcxxrbvxxrvbxxrvfxxrgvxxrvgxxrvzxxrvxzxrvxcxrvsxxrvxsxrvdxxrvxdxxrvxxrrvxxrvvxxrvxx