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Dots (that is, '.') may be replaced by zeros (that is, '0'). Spaces and other separators (that is, '|' and '_') as well as line breaks may be omitted or replaced by other characters. The puzzle description may be followed by arbitrary comments. puzzle is unsolvable (with this backtracking depth) ؑ5555555555555 0 oԁЂ HЃooot vƄքQGCC: (Ubuntu 4.4.3-4ubuntu5) 4.4.3.symtab.strtab.shstrtab.interp.note.ABI-tag.note.gnu.build-id.gnu.hash.dynsym.dynstr.gnu.version.gnu.version_r.rel.dyn.rel.plt.init.text.fini.rodata.eh_frame.ctors.dtors.jcr.dynamic.got.got.plt.data.bss.comment44#HH 1hh$HHDoԁ,N VЂ^ottko@z Ѓ H 000`` *  /((/4  ???  ???0$$@@4@ 04@#W@E@8 8K4HhԁЂt Ѓ  0 `  (  $@ (50KHZLhtW`D 60, g` ( ; D$ Op_f  ( , $(:@L](j{Z4D_4ڮ` 0 crtstuff.c__CTOR_LIST____DTOR_LIST____JCR_LIST____do_global_dtors_auxcompleted.7021dtor_idx.7023frame_dummy__CTOR_END____FRAME_END____JCR_END____do_global_ctors_auxsudoku.cshowboarddigitsstepssolveunknownuniquesectsmaxdepstackreport_GLOBAL_OFFSET_TABLE___init_array_end__init_array_start_DYNAMICdata_start__libc_csu_fini_start__fprintf_chk@@GLIBC_2.3.4__gmon_start___Jv_RegisterClasses_fp_hw__printf_chk@@GLIBC_2.3.4strchr@@GLIBC_2.0_fini__libc_start_main@@GLIBC_2.0_IO_stdin_usedstrtol@@GLIBC_2.0__data_startfclose@@GLIBC_2.1stderr@@GLIBC_2.0fopen@@GLIBC_2.1__dso_handlefgetc@@GLIBC_2.0__DTOR_END____libc_csu_init__bss_startstdin@@GLIBC_2.0_end_edata__i686.get_pc_thunk.bxmain_init