!7

p {
  assertTrue(isProperlyQuoted2([["abc"]]));
  assertTrue(isProperlyQuoted2([[""]]));
  assertTrue(isProperlyQuoted2([["a"]]));
  assertFalse(isProperlyQuoted2([[a"]]));
  assertFalse(isProperlyQuoted2([["a]]));
  assertFalse(isProperlyQuoted2([["a" "b"]]));
  assertFalse(isProperlyQuoted2([[a]]));
  assertFalse(isProperlyQuoted2([[]]));
  assertFalse(isProperlyQuoted2([["a" "b]]));
  assertFalse(isProperlyQuoted2([["a""]]));
  assertTrue(isProperlyQuoted2([["a\""]]));
  assertFalse(isProperlyQuoted2([["a\"]]));
  print("OK");
}