'''''''''''''''''''*'''''''''*'''''''''''''''''''
'''*,,,''''''''''''':''''''':''''''''''''',,,*'''
'''`Y888888bo.''''''':''''':'''''''.od888888Y''''
'''''8888888888b.''''':''':''''''.d8888888888''''
'''''88888Y...*Y8b.''':''':'''.d8Y*...Y88888'''''
''''j88888...cm.**Yb.''*'*''.dY**.cm...88888k''''
'''''''888..Y88Y*****b'(')'d*****Y88Y..888'''''''
'''''''888b..'"********,',********"'..d888'''''''
''''''j888888bd8gb"'***':'***`"dg8bd888888k''''''
'''''''''Y''''.8'.....d'''b.....'8.''''Y'''''''''
'''''''''!'''.8'.cm..d';';`b..cm.'8.'''!'''''''''
''''''''''''d88""`'""8';';'8""`'""88b''''''''''''
'''''''''''d888b""".g8'',''8g."""d888b'''''''''''
'''''''''':888888888Y'''''''Y888888888:''''''''''
''''''''''!'8888888'''''''''`8888888'!'''''''''''
'''''''''''''8Y'''Y''''''''''Y'''Y8''''''''''''''
'''''''''''''Y'''''''''''''''''''Y'''''''''''''''
'''''''''''''!'''''''''''''''''''!'''''''''''''''
'''''''''''''''''''''''''''''''''''''''''''''''''
'''''''''''''''''''''''''''''''''''''''''''''''''
'''''''''''''''''''''''''''''''''''''''''''''''''
'''''''''''''''''''''''''''''''''''''''''''''''''
'''''''''''''''''''''''''''''''''''''''''''''''''
''''''''''''''''''''butterfly''''''''''''''''''''
'''''''''''''''''''''effect*'''''''''''''''''''''
'''''''''''''''''''''''''''''''''''''''''''''''''
'''''''''''''''''''''''''''''''''''''''''''''''''
'''''''''''''''''''''''''''''''''''''''''''''''''
'''''''''''''''''''''''''''''''''''''''''''''''''
'''''''''''''''''''''''''''''''''''''''''''''''''
'''''''''''''''''''''''''''''''''''''''''''''''''
'''''''''''''''''''''''''''''''''''''''''''''''''
'''''''''''''''''''''''''''''''''''''''''''''''''