Common typos: f1t21t2ft2f11f1t3f1twf1tqf1t2d1t2g1t2r1t2c1t2v1t2t1t2f2t2fqt2fwt2f1r2f1y2f152f1g2f1f2f16f21t21ft2ft112f1t21f1t32f1t23f1tw2f1t2wf1tq2f1t2qf1t2df1t2fd1t2gf1t2fg1t2rf1t2fr1t2cf1t2fc1t2vf1t2fv1t2tf1t2ft1t2f21t2f12t2fq1t2f1qt2fw1t2f1wt2f1rt2f1tr2f1yt2f1ty2f15t2f1t52f1gt2f1tg2f1ft2f1tf2f16t2f1t622f1t2ff1t2f11t2f1tt