#include<stdio.h>
char* func(char* x,char* y);
void main()
{
	char a[50],d[50];
	char *b;
	gets(a);
	b=func(a,d);
	while(*b!='\0')
	{
		printf("%c",*b);
		b++;
	}
}

char* func(char* x,char* y)
{ char *p,*p1,*p2;
	p=x;
	p1=y;
	p2=p1;
	while(*p!='\0')
	{
		if(*p=='1'||*p=='2'||*p=='3'||*p=='4'||*p=='5'||*p=='6'||*p=='7'||*p=='8'||*p=='9')
		{		;	}
		else
		{	*p1=*p;

			p1++;
		}

		p++;

	}
	return p2;
}