Common typos: yi17-17xi17-17xy17-17xyi7-17xyi1-17xyi1717xyi17-7xyi17-1zyi17-17cyi17-17syi17-17dyi17-17xui17-17xti17-17xhi17-17x6i17-17x7i17-17xgi17-17xyo17-17xyu17-17xyk17-17xy817-17xy917-17xyj17-17xyi27-17xyiq7-17xyiw7-17xyi18-17xyi16-17xyi1u-17xyi1y-17xyi17017xyi17p17xyi17-27xyi17-q7xyi17-w7xyi17-18xyi17-16xyi17-1uxyi17-1yyxi17-17xiy17-17xy1i7-17xyi71-17xyi1-717xyi171-7xyi17-71zxyi17-17xzyi17-17cxyi17-17xcyi17-17sxyi17-17xsyi17-17dxyi17-17xdyi17-17xuyi17-17xyui17-17xtyi17-17xyti17-17xhyi17-17xyhi17-17x6yi17-17xy6i17-17x7yi17-17xy7i17-17xgyi17-17xygi17-17xyoi17-17xyio17-17xyiu17-17xyki17-17xyik17-17xy8i17-17xyi817-17xy9i17-17xyi917-17xyji17-17xyij17-17xyi217-17xyi127-17xyiq17-17xyi1q7-17xyiw17-17xyi1w7-17xyi187-17xyi178-17xyi167-17xyi176-17xyi1u7-17xyi17u-17xyi1y7-17xyi17y-17xyi170-17xyi17-017xyi17p-17xyi17-p17xyi17-217xyi17-127xyi17-q17xyi17-1q7xyi17-w17xyi17-1w7xyi17-187xyi17-178xyi17-167xyi17-176xyi17-1u7xyi17-17uxyi17-1y7xyi17-17yxxyi17-17xyyi17-17xyii17-17xyi117-17xyi177-17xyi17--17xyi17-117xyi17-177
