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#include <stdio.h>
#include <stdlib.h>
char *func(char *p);
int main()
{
	char *p, *q;
	p = (char *)malloc(60*sizeof(char));
	scanf("%s", p);
	q = func(p);
	printf("%s\n", q);
	return 0;
}
char *func(char *p)
{
	char *q;
	q = (char*)malloc(60*sizeof(char));
	int i = 0, j = 0;
	while (p[i] != '\0')
	{
		if (p[i] != '1' && p[i] != '2' && p[i] != '3' && p[i] != '4' && p[i] != '5' && p[i] != '6' && p[i] != '7' && p[i] != '8' && p[i] != '9' && p[i] != '0')
		{
			q[j] = p[i];
			j++;
		} 
		i++;
	} 
	return q;
}