Printing a "Hello World" one-liner in bourne shell without directly using white space char I'm currently trying to solve a tricky/silly challenge and i've come to a dead end.

The challenge is basically to form a one-liner /bin/sh compatible command line
which essentially outputs "Hello World" without directly typing White space or Tab characters in the command itself.

for example something like -

echo Hello World


would be invalid since we used white space twice in the command line.

Any ideas?
One which works in dash, so I suppose it is sh compatible;

IFS=@;command=echo@Hello@World;$command