#include <stdio.h>

void squeeze1(char s1[], char s2[]);

int main()
{
    char z[] = "Hello!";
    printf("%s\n", z);
    squeeze1(z, "Heo!");
    printf("%s\n", z);

    system("pause");
    return 0;
}

void squeeze1(char s1[], char s2[])
{
     int i, j, z;

     for(i = 0; s1[i] != '\0'; i++)
           for(j = 0; s2[j] != '\0'; j++)
                 if(s1[i] == s2[j]){
                          z = i;
                          while(s1[z] != '\0')
                                      s1[z] = s1[++z];
                 }


     s1[i] = '\0';
}