Script

>4 loops for one sequence
I hope you're just pretending.

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He wants to brute-force a keypad by trying every possible combination.

Trying to crack rust doors?

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Is there a way to write a script that automatically prints the sum of two numbers?

Literally only 1 while loop
t0 = time(); // Time in seconds
while(true) {
t1 = time();
pressNumberKeys(t1 - t0);
sleep(1);
if (t1 - t0 > 9999) {
return;
}
}

I hope this is a joke. This takes minimum 10,000 seconds, whereas the 4 loop solution runs 10,000 iterations total, which will finish much faster than that "clever" solution.

Looplets btfo

t0 = time(); // Time in nanoseconds
while(true) {
t1 = time();
pressNumberKeys(t1 - t0);
sleep(0.000000001); // Sleep 1 nanosecond
if (t1 - t0 > 9999) {
return;
}
}

>its so easy
>no one actually mention the interesting part which is generating the event
guess its not so easy huh

>implying your CPU timer is accurate to the nanosecond
just give up

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t0 = time(); // Time in nanoseconds
if (!cpuAccurateToTheNanosecond) {
t0 += 10;
}

while(true) {
t1 = time();
if (!cpuAccurateToTheNanosecond) {
t0 += 9;
}

pressNumberKeys(t1 - t0);
sleep(0.000000001); // Sleep 1 nanosecond

if (!cpuAccurateToTheNanosecond) {
sleep(0.00000001); // Sleep 1 nanosecond
else
sleep(0.000000001); // Sleep 10 nanosecond

if (t1 - t0 > 9999) {
return;
}
}

You just need to check msdn (assuming Windows) for the relevant winapi function and write a few lines of code to implement it. You don't even need to be a competent developer, you could literally just paste example code from some random blog, tweak it a bit, and wrap it in that for loop.

But nobody wants to spoonfeed the OP with exact details because he's probably trying to hack or steal something.

>program a script

#!/usr/bin/env bash
# numnum.sh - bruteforce 4 digits with xdotool
for n in `seq -w 0000 9999`
do echo "n is $n"
for digit in `echo $n | sed 's/\(.\{1\}\)/\1 /g'`
do echo "xdotool key $digit"
done
echo "xdotool key Return"
echo
done

>using xdotool instead of libxdo
Enjoy your overhead

>But nobody wants to spoonfeed the OP with exact details because he's probably trying to hack or steal something.
not really. if we spoonfeed op he will learn nothing.

do{press_key(rand() % 10000));}while(true);