#include <stdio.h>
#include <string.h>

int main(void) {
	char *initialnonce = "\"7d0ae5ad\"";
	char newnonce[64];
	int i;
	unsigned int j=0;

	for (i=0;initialnonce[i]&&j<sizeof newnonce;i++) {
		if ((initialnonce[i] >= '0' && initialnonce[i] <= '9') ||
		    (initialnonce[i] >= 'a' && initialnonce[i] <= 'z') ||
		    (initialnonce[i] >= 'A' && initialnonce[i] <= 'Z')) {
			newnonce[j++] = initialnonce[i];
		}
	}
	newnonce[j] = (char)0;
	return 0;
}