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

int main(int argc, char *argv[])
{
	int i, ii;
	int j = 0;
	int num[argc-1];


	for (i = 1; i < argc; i++)
	{
		for(ii = 0; ii < strlen(argv[i]); ii++)
			if(!isdigit(argv[i][ii]))
				break;

		if(ii == strlen(argv[i]))
			num[j++] = atoi(argv[i]);
	}

	for (i = 0; i < j; i++)
	{
	  printf("%d\t", num[i]);
	}

	return 0;
}