#include <stdio.h>
#include <stdlib.h>

void printVALUES(int n, int values[])
{
    for(int i=0 ; i<n ; i++)
        printf("%i ", values[i]);
    printf("\n");
}

void superloop(int nloops, int lower_bounds[], int upper_bounds[])
{
    int         values[nloops];
    int         n       = 0;

    values[n] = lower_bounds[n];
    while(n >= 0) {
        if(values[n] <= upper_bounds[n]) {
            if(n == nloops-1) {
                printVALUES(nloops, values);
                values[n]++;
            }
            else {
                n++;
                values[n] = lower_bounds[n];
            }
        }
        else {
            --n;
            values[n]++;
        }
    }
}

int main(void)
{
#define NLOOPS          4

    int lower_bounds[NLOOPS] = {  1,  1,  1,  1 };
    int upper_bounds[NLOOPS] = { 10, 10, 10, 10 };

    superloop(NLOOPS, lower_bounds, upper_bounds);
    return 0;
}