Hello

I have problem.who can help me.

As everyone knows the narcissistic number.
eg: 1^3+5^3+3^3=153 3^3+7^3+0^3=370

This is only three-digit number.I be able to write a programe to get it .

I have a task to calculate the 21-digit narcissistic number , and must be completed in one minutes with a computer .Who can help me ,give a way for obtaining,or give me a source code .

thanks and regards

liunian