# include<stdio.h>
# include<stdlib.h>
# include<string.h>
main()
{
	int i=0,j;int count=0;
	char ch1,ch2,ch3;
	char ch[30],ch4[30];
	int x=0;
	gets(ch4);
	int l1=strlen(ch4);
	for(j=0;j<=l1;j++)
	{
		if(ch4[j]<47||ch4[j]>58)
			putchar((ch4[j]));
	}
}