Common typos: _or_87or_87_r_87_o_87_or87_or_8_or_86_or_8u_or_8y_or_87por_87_pr_87_ir_87_lr_87_9r_87_kr_87_0r_87_oe_87_ot_87_o4_87_of_87_od_87_o5_87_orp87_or_97_or_77_or_i7_or_u_7or_87o_r_87_ro_87_o_r87_or8_87_or_878_or_867_or_876_or_8u7_or_87u_or_8y7_or_87y_or_87p_or_87_por_87_opr_87_ior_87_oir_87_lor_87_olr_87_9or_87_o9r_87_kor_87_okr_87_0or_87_o0r_87_oer_87_ore_87_otr_87_ort_87_o4r_87_or4_87_ofr_87_orf_87_odr_87_ord_87_o5r_87_or5_87_orp_87_or_p87_or_987_or_897_or_787_or_877_or_i87_or_8i7_or_u87_or_8u77_or_87__or_87_oor_87_orr_87_or__87_or_88
