Common typos: _jack_77jack_77_ack_77_jck_77_jak_77_jac_77_jack77_jack_8_jack_76_jack_7u_jack_7y_jack_77pjack_77_kack_77_hack_77_uack_77_mack_77_nack_77_iack_77_jsck_77_jqck_77_jzck_77_jwck_77_jaxk_77_javk_77_jadk_77_jafk_77_jacl_77_jacj_77_jaci_77_jacm_77_jaco_77_jackp77_jack_87_jack_67_jack_u7_jack_y_7jack_77j_ack_77_ajck_77_jcak_77_jakc_77_jac_k77_jack7_87_jack_778_jack_767_jack_776_jack_7u7_jack_77u_jack_7y7_jack_77y_jack_77p_jack_77_pjack_77_kjack_77_jkack_77_hjack_77_jhack_77_ujack_77_juack_77_mjack_77_jmack_77_njack_77_jnack_77_ijack_77_jiack_77_jsack_77_jasck_77_jqack_77_jaqck_77_jzack_77_jazck_77_jwack_77_jawck_77_jaxck_77_jacxk_77_javck_77_jacvk_77_jadck_77_jacdk_77_jafck_77_jacfk_77_jaclk_77_jackl_77_jacjk_77_jackj_77_jacik_77_jacki_77_jacmk_77_jackm_77_jacok_77_jacko_77_jackp_77_jack_p77_jack_877_jack_787_jack_677_jack_767_jack_u77_jack_7u7_jack_y77_jack_7y77_jack_77__jack_77_jjack_77_jaack_77_jacck_77_jackk_77_jack__77_jack_77
