What will be displayed after the following code is executed?

counter $=4$

while counter $<mtext\; id="EditorElement\_17444517"></mtext><mn\; id="EditorElement\_17444518">1</mn><mn\; id="EditorElement\_17444519">2</mn>$:

print$("$counting$",$ end$=\text{'}\text{'})$

counter $=$ counter $+2$