String compare issue

A very simple script to compare string, if string include \n,\t, how to use compare?

*** Test Cases ***
compare
{abc1} set Variable 1\n2 {abc2} set Variable 12
run keyword if ‘{abc1}'!='{abc2}’ log 1234

ERROR:
20200820 17:29:49.055 : FAIL :
Evaluating expression ‘‘1
2’!=‘12’’ failed: SyntaxError: EOL while scanning string literal (, line 1)