#include <stdio.h>
#include<stdlib.h>
#include<string.h>


void wtf() {
    FILE *f = fopen("zborovi.txt", "w");
    char c;
    while((c = getchar()) != EOF) {
        fputc(c, f);
    }
    fclose(f);
}

int main() {
    wtf();
    FILE *f;
    if ((f=fopen("zborovi.txt","r"))==NULL) {
        printf("datotekata zborovi,txt ne moze da bide otvorena\n");
        return -1;
    }
    char c;
    char str[100];
    int i;
    int br=0;
    int start,end;
    char newstr[100];
    fscanf(f,"%c",&c);
    while ((fgets(str,100,f))!=NULL) {
        int n=strlen(str);
        i=0;
        while (i<n) {
            if (isalnum(str[i])) {
                start=i;
                while (i<n&&isalnum(str[i])) {
                    i++;
                }
                end=i-1;
                if (str[start]==c && str[end]==c) {
                    br++;
                    strncpy(newstr,str+start,end-start+1);
                    printf("%s ",newstr);
                }
            }
                else i++;
            }
        printf("\n");
    }
    printf("%d",br);
    fclose(f);
    return 0;
}