echo '1 2 3 2 1 2 3 2 2 1 2 3 2 3 2 3 2 1 3 2 3 2 1 2 3 2 1 2 2 3 2 1 2 1 2 1 2 3 1 2 3 2 1 2 3 2 1 2 2 1 2 3 2 3 2 3 2 1 3 2 3 2 1 2 3 2 1 2 2 3 2 1 2 1 2 1 2 3 1 2 1 2 3 2 1 2 3 2 2 2 3 2 1 2 3 2 1 2 2 1'
Note that non-ascii characters in the above source code will be escaped (such as \x9f).