var
a = "Nimrod is a progamming language"
b = "Slices are useless."
echo a[10..15] # --> 'a prog'
b[11.. -2] = "useful"
echo b # --> 'Slices are useful.'
dmFyCiAgYSA9ICJOaW1yb2QgaXMgYSBwcm9nYW1taW5nIGxhbmd1YWdlIgogIGIgPSAiU2xpY2VzIGFyZSB1c2VsZXNzLiIKCmVjaG8gYVsxMC4uMTVdICMgLS0+ICdhIHByb2cnCmJbMTEuLiAtMl0gPSAidXNlZnVsIgplY2hvIGIgIyAtLT4gJ1NsaWNlcyBhcmUgdXNlZnVsLic=