\section*{Test result}
\begin{itemize}
\item[orig] ABCDEFG tuvwxyz
\item[1 5] ABCDE
\item[1 4] ABCD
\item[1 3] ABC
\item[1 2] AB
\item[1 1] A
\item[2 1] B
\item[3 1] C
\item[4 1] D
\item[5 1] E
\item[1 5] ABCDE
\item[2 5] BCDEF
\item[3 5] CDEFG
\item[4 5] DEFG
\item[5 5] EFG t
\item[1 5] ABCDE
\item[2 4] BCDE
\item[3 3] CDE
\item[4 2] DE
\item[5 1] E
\item[1 8] ABCDEFG
\item[2 7] BCDEFG
\item[3 6] CDEFG
\item[4 5] DEFG
\item[5 4] EFG
\item[6 3] FG
\item[7 2] G
\item[8 1]
\item[-1 5] vwxyz
\item[-1 4] wxyz
\item[-1 3] xyz
\item[-1 2] yz
\item[-1 1] z
\item[-2 1] y
\item[-3 1] x
\item[-4 1] w
\item[-5 1] v
\item[-1 5] vwxyz
\item[-2 5] uvwxy
\item[-3 5] tuvwx
\item[-4 5]  tuvw
\item[-5 5] G tuv
\item[-1 5] vwxyz
\item[-2 4] vwxy
\item[-3 3] vwx
\item[-4 2] vw
\item[-5 1] v
\item[-1 8]  tuvwxyz
\item[-2 7]  tuvwxy
\item[-3 6]  tuvwx
\item[-4 5]  tuvw
\item[-5 4]  tuv
\item[-6 3]  tu
\item[-7 2]  t
\item[-8 1]
\item[1 1, 1 1] A
\item[2 1, 1 1] B
\item[3 1, 1 1] C
\item[4 1, 1 1] D
\item[5 1, 1 1] E
\item[orig] ÅÇÈÎØÜÝ~åçèîøüý
\item[1 5] ÅÇÈÎØ
\item[1 4] ÅÇÈÎ
\item[1 3] ÅÇÈ
\item[1 2] ÅÇ
\item[1 1] Å
\item[2 1] Ç
\item[3 1] È
\item[4 1] Î
\item[5 1] Ø
\item[1 5] ÅÇÈÎØ
\item[2 5] ÇÈÎØÜ
\item[3 5] ÈÎØÜÝ
\item[4 5] ÎØÜÝ~
\item[5 5] ØÜÝ~å
\item[1 5] ÅÇÈÎØ
\item[2 4] ÇÈÎØ
\item[3 3] ÈÎØ
\item[4 2] ÎØ
\item[5 1] Ø
\item[1 8] ÅÇÈÎØÜÝ~
\item[2 7] ÇÈÎØÜÝ~
\item[3 6] ÈÎØÜÝ~
\item[4 5] ÎØÜÝ~
\item[5 4] ØÜÝ~
\item[6 3] ÜÝ~
\item[7 2] Ý~
\item[8 1] ~
\item[-1 5] èîøüý
\item[-1 4] îøüý
\item[-1 3] øüý
\item[-1 2] üý
\item[-1 1] ý
\item[-2 1] ü
\item[-3 1] ø
\item[-4 1] î
\item[-5 1] è
\item[-1 5] èîøüý
\item[-2 5] çèîøü
\item[-3 5] åçèîø
\item[-4 5] ~åçèî
\item[-5 5] Ý~åçè
\item[-1 5] èîøüý
\item[-2 4] èîøü
\item[-3 3] èîø
\item[-4 2] èî
\item[-5 1] è
\item[-1 8] ~åçèîøüý
\item[-2 7] ~åçèîøü
\item[-3 6] ~åçèîø
\item[-4 5] ~åçèî
\item[-5 4] ~åçè
\item[-6 3] ~åç
\item[-7 2] ~å
\item[-8 1] ~
\item[1 1, 1 1] Å
\item[2 1, 1 1] Ç
\item[3 1, 1 1] È
\item[4 1, 1 1] Î
\item[5 1, 1 1] Ø
\item[orig] {AB}CDEFG tuvwx{yz}
\item[1 5] {AB}C
\item[1 4] {AB}
\item[1 3] {AB
\item[1 2] {A
\item[1 1] {
\item[2 1] A
\item[3 1] B
\item[4 1] }
\item[5 1] C
\item[1 5] {AB}C
\item[2 5] AB}CD
\item[3 5] B}CDE
\item[4 5] }CDEF
\item[5 5] CDEFG
\item[1 5] {AB}C
\item[2 4] AB}C
\item[3 3] B}C
\item[4 2] }C
\item[5 1] C
\item[1 8] {AB}CDEF
\item[2 7] AB}CDEF
\item[3 6] B}CDEF
\item[4 5] }CDEF
\item[5 4] CDEF
\item[6 3] DEF
\item[7 2] EF
\item[8 1] F
\item[-1 5] x{yz}
\item[-1 4] {yz}
\item[-1 3] yz}
\item[-1 2] z}
\item[-1 1] }
\item[-2 1] z
\item[-3 1] y
\item[-4 1] {
\item[-5 1] x
\item[-1 5] x{yz}
\item[-2 5] wx{yz
\item[-3 5] vwx{y
\item[-4 5] uvwx{
\item[-5 5] tuvwx
\item[-1 5] x{yz}
\item[-2 4] x{yz
\item[-3 3] x{y
\item[-4 2] x{
\item[-5 1] x
\item[-1 8] uvwx{yz}
\item[-2 7] uvwx{yz
\item[-3 6] uvwx{y
\item[-4 5] uvwx{
\item[-5 4] uvwx
\item[-6 3] uvw
\item[-7 2] uv
\item[-8 1] u
\item[1 1, 1 1] {
\item[2 1, 1 1] A
\item[3 1, 1 1] B
\item[4 1, 1 1] }
\item[5 1, 1 1] C
\item[orig] {{AB}CD}EFG tuv{wx{yz}}
\item[1 5] {{AB}
\item[1 4] {{AB
\item[1 3] {{A
\item[1 2] {{
\item[1 1] {
\item[2 1] {
\item[3 1] A
\item[4 1] B
\item[5 1] }
\item[1 5] {{AB}
\item[2 5] {AB}C
\item[3 5] AB}CD
\item[4 5] B}CD}
\item[5 5] }CD}E
\item[1 5] {{AB}
\item[2 4] {AB}
\item[3 3] AB}
\item[4 2] B}
\item[5 1] }
\item[1 8] {{AB}CD}
\item[2 7] {AB}CD}
\item[3 6] AB}CD}
\item[4 5] B}CD}
\item[5 4] }CD}
\item[6 3] CD}
\item[7 2] D}
\item[8 1] }
\item[-1 5] {yz}}
\item[-1 4] yz}}
\item[-1 3] z}}
\item[-1 2] }}
\item[-1 1] }
\item[-2 1] }
\item[-3 1] z
\item[-4 1] y
\item[-5 1] {
\item[-1 5] {yz}}
\item[-2 5] x{yz}
\item[-3 5] wx{yz
\item[-4 5] {wx{y
\item[-5 5] v{wx{
\item[-1 5] {yz}}
\item[-2 4] {yz}
\item[-3 3] {yz
\item[-4 2] {y
\item[-5 1] {
\item[-1 8] {wx{yz}}
\item[-2 7] {wx{yz}
\item[-3 6] {wx{yz
\item[-4 5] {wx{y
\item[-5 4] {wx{
\item[-6 3] {wx
\item[-7 2] {w
\item[-8 1] {
\item[1 1, 1 1] {
\item[2 1, 1 1] {
\item[3 1, 1 1] A
\item[4 1, 1 1] B
\item[5 1, 1 1] }
\item[orig] {{ÅÇ}ÈÎ}ØÜÝ~åçè{îø{üý}}
\item[1 5] {{ÅÇ}
\item[1 4] {{ÅÇ
\item[1 3] {{Å
\item[1 2] {{
\item[1 1] {
\item[2 1] {
\item[3 1] Å
\item[4 1] Ç
\item[5 1] }
\item[1 5] {{ÅÇ}
\item[2 5] {ÅÇ}È
\item[3 5] ÅÇ}ÈÎ
\item[4 5] Ç}ÈÎ}
\item[5 5] }ÈÎ}Ø
\item[1 5] {{ÅÇ}
\item[2 4] {ÅÇ}
\item[3 3] ÅÇ}
\item[4 2] Ç}
\item[5 1] }
\item[1 8] {{ÅÇ}ÈÎ}
\item[2 7] {ÅÇ}ÈÎ}
\item[3 6] ÅÇ}ÈÎ}
\item[4 5] Ç}ÈÎ}
\item[5 4] }ÈÎ}
\item[6 3] ÈÎ}
\item[7 2] Î}
\item[8 1] }
\item[-1 5] {üý}}
\item[-1 4] üý}}
\item[-1 3] ý}}
\item[-1 2] }}
\item[-1 1] }
\item[-2 1] }
\item[-3 1] ý
\item[-4 1] ü
\item[-5 1] {
\item[-1 5] {üý}}
\item[-2 5] ø{üý}
\item[-3 5] îø{üý
\item[-4 5] {îø{ü
\item[-5 5] è{îø{
\item[-1 5] {üý}}
\item[-2 4] {üý}
\item[-3 3] {üý
\item[-4 2] {ü
\item[-5 1] {
\item[-1 8] {îø{üý}}
\item[-2 7] {îø{üý}
\item[-3 6] {îø{üý
\item[-4 5] {îø{ü
\item[-5 4] {îø{
\item[-6 3] {îø
\item[-7 2] {î
\item[-8 1] {
\item[1 1, 1 1] {
\item[2 1, 1 1] {
\item[3 1, 1 1] Å
\item[4 1, 1 1] Ç
\item[5 1, 1 1] }
\item[orig] {\a}Åå{\b}Ææ{\c}Çç
\item[1 5] {\a}Å
\item[1 4] {\a}
\item[1 3] {\a
\item[1 2] {\
\item[1 1] {
\item[2 1] \
\item[3 1] a
\item[4 1] }
\item[5 1] Å
\item[1 5] {\a}Å
\item[2 5] \a}Åå
\item[3 5] a}Åå{
\item[4 5] }Åå{\
\item[5 5] Åå{\b
\item[1 5] {\a}Å
\item[2 4] \a}Å
\item[3 3] a}Å
\item[4 2] }Å
\item[5 1] Å
\item[1 8] {\a}Åå{\
\item[2 7] \a}Åå{\
\item[3 6] a}Åå{\
\item[4 5] }Åå{\
\item[5 4] Åå{\
\item[6 3] å{\
\item[7 2] {\
\item[8 1] \
\item[-1 5] \c}Çç
\item[-1 4] c}Çç
\item[-1 3] }Çç
\item[-1 2] Çç
\item[-1 1] ç
\item[-2 1] Ç
\item[-3 1] }
\item[-4 1] c
\item[-5 1] \
\item[-1 5] \c}Çç
\item[-2 5] {\c}Ç
\item[-3 5] æ{\c}
\item[-4 5] Ææ{\c
\item[-5 5] }Ææ{\
\item[-1 5] \c}Çç
\item[-2 4] \c}Ç
\item[-3 3] \c}
\item[-4 2] \c
\item[-5 1] \
\item[-1 8] Ææ{\c}Çç
\item[-2 7] Ææ{\c}Ç
\item[-3 6] Ææ{\c}
\item[-4 5] Ææ{\c
\item[-5 4] Ææ{\
\item[-6 3] Ææ{
\item[-7 2] Ææ
\item[-8 1] Æ
\item[1 1, 1 1] {
\item[2 1, 1 1] \
\item[3 1, 1 1] a
\item[4 1, 1 1] }
\item[5 1, 1 1] Å
\end{itemize}
\endinput