add(new Op1("mQ") {
			@Override
			protected Object calc(final CJam x, final Object a) {
				if (!isNumber(a)) {
					throw fail(a);
				}
				final Object a1 = isDouble(a) ? ((Op1) get('i')).calc(x, a) : a;
				if (isLong(a1)) {
					final long al = toLong(a1);
					if (al < 0) {
						throw new ArithmeticException("Square root of negative number");
					}
					long t = (long) Math.sqrt(al);
					if (t < 1 << 26) {
						return t;
					}
					while (true) {
						final long t1 = (t + al / t) / 2;

n=3:
8
n=4:
13824
n=5:
71328803586048
n=6
9798477119793909670551703700100284084649984

Describe assignment.
  Describe definition.
    [First of all,]
    It should work:
      TestCheddarFrom.Code("var a = 1") should equal "".
    It should set:
      TestCheddarFrom.Code("var a = 1; print a") should equal "1".
    It should work in expressions:
      TestCheddarFrom.Code("var a = 1; print a + 1") should equal "2".
    It should work with vars:
      TestCheddarFrom.Code("var a = 1; var b = a; print b") should equal "1".
  Describe reassignment.
    [First of all,]
    It should work:

foo should be a "string".
=== equals ===
Expect foo to be a "string".
=== equals ===
Assert type of foo: string.

>>> y = 13**4; z=2923; (3**z%y)//2; (3**z//2)%y
554
14834