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


int strlen1(char *st) {
    int i, length;
    length = 0;
    for (i = 0; *(st+i)!= '\0'; i++){
        length = length + 1;
    }
    return length;
}

void strncpy1( char * source , char * target ){
    int i;
    while ((*target = *source) != '\0'){
        target++;
        source++;
    }
    return 0;
}

char *strstr1( char *string, char *pattern)
{
    int flag=0;
    int i,j;
    for (i=0;*string != '\0';string++){

        if( *string == *pattern){
            for( j = 0; *(string+j) = *(pattern+j); j++){
            }
        }
        if (*(pattern+j)='\0'){
            flag=1;
            break;
        }
    }

    if(flag == 1) {
        return string ;
    } else {
        return 0;
    }
}

int main(){
    char *st, *source, *target, *string, *pattern, k;
    int c;
    gets(st);
    gets(source);
    gets(target);
    gets(string);
    gets(pattern);
    c = strlen1(st);
    strncpy1( target, source );
    k = strstr1( string, pattern );
    printf("%d, %s \n" c, k);

}