#include<stdio.h>
#include<string.h>
void main()
{
  char s1[50];
int i,j;
 printf("enter any string\n");
 scanf("%s",s1);
 for(i=0;s1[i]!='\0';i++)
{
if(!((s1[i]>='a'&&s1[i]<='z')&&(s1[i]>='A'&&s1[i]<='Z')&&s1[i]=='\0'))
  {
   for(j=i;s1[j]!='\0';j++)
{
   s1[j]=s1[j+1];
   j++;
}
}
s1[j]='\0';
}
printf("output string:\n");
puts(s1);
}