for(i = 0; i < 5; i++) {
        if(word1[i] == word2[i]) {
            result[i] = word1[i];
        }else{
            result[i] = '-';
        }
    }

    for(i = 0; i < 5; i++){
        pch = strchr(word2, word1[i]);

        if(pch!=NULL) {
            pch2 =strchr(result, word1[i]);

            if(pch2==NULL) {
                result[pch-word2] = '*';
            }
        }
    }