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☺️
\u263A\uFE0F
\U00263A\U00FE0F
\u{263A}\u{FE0F}
\U0000263A\U0000FE0F
\263A\FE0F
\00263A\00FE0F
=E2=98=BA=EF=B8=8F
%E2%98%BA%EF%B8%8F