"M6 21V4.707L3.354 7.354l-.707-.707L6.5 2.793l3.854 3.854-.707.707L7 4.707V21zM17 3v16.293l-2.646-2.646-.707.707 3.853 3.853 3.854-3.854-.707-.707L18 19.293V3z"