Problem Statement

Take a string and reverse it. For example, "asdf" becomes "fdsa".

Preserve Unicode combining characters. For example, "as⃝df̅" becomes "f̅ds⃝a", not "̅fd⃝sa".

Let's start with the solution:

>> x = "rosettacode"
rosettacode

// script
rx = "";
for (i in strlen(x):1:-1)
{
  rx = rx + substr(x, i);
}

>> rx
edocattesor