def f(n)
xs=gets.split.map{|e| (e.to_i-2023).abs}
no=[]
1.upto(n){|i|
no<<i
}
puts xs.zip(no).sort[0][1]
end
n=1
while 0<n
n=gets.to_i
break if n==0
f(n)
end
ZGVmIGYobikKeHM9Z2V0cy5zcGxpdC5tYXB7fGV8IChlLnRvX2ktMjAyMykuYWJzfQpubz1bXQoxLnVwdG8obil7fGl8Cglubzw8aQp9CnB1dHMgeHMuemlwKG5vKS5zb3J0WzBdWzFdCgplbmQKbj0xCndoaWxlIDA8bgoJbj1nZXRzLnRvX2kKCWJyZWFrIGlmIG49PTAKCWYobikKZW5k
MgoxMjMgNDU2NwozCjIwMjQgMjAyMCAyMDIzCjUKMjAyMCAyMDIwIDIwMjEgMjAyNCAyMDI2CjMKMTU5OSAyMjIyIDE1OTkKOAoyIDIgMyAzIDQgNCA1IDEKNAo3Nzc3IDY2NjYgODg4OCA5OTk5CjA=
2
123 4567
3
2024 2020 2023
5
2020 2020 2021 2024 2026
3
1599 2222 1599
8
2 2 3 3 4 4 5 1
4
7777 6666 8888 9999
0