Ambiente externo
Hjhjhwdjwhskxjkkkkkkkkkkkkkkkjjjjjjjjjjjjjjjjjjjjjjjj jjjjjjjjjjjjjjjj jjjjjjjjjjjjjjjjjjjjjjjkjlkjlk jdj fk vkfjvf kfkjkjfkdekcjedkcjd cj djc djc kdjckjdekcjedkcvjdkevcjdkc KD cjkdj ck djcekjdckjedciedci dciu dci udci dic uidu ciedu ciu
Hjhjhwdjwhskxjkkkkkkkkkkkkkkkjjjjjjjjjjjjjjjjjjjjjjjj jjjjjjjjjjjjjjjj jjjjjjjjjjjjjjjjjjjjjjjkjlkjlk jdj fk vkfjvf kfkjkjfkdekcjedkcjd cj djc djc kdjckjdekcjedkcvjdkevcjdkc KD cjkdj ck djcekjdckjedciedci dciu dci udci dic uidu ciedu ciu
Hjhjhwdjwhskxjkkkkkkkkkkkkkkkjjjjjjjjjjjjjjjjjjjjjjjj jjjjjjjjjjjjjjjj jjjjjjjjjjjjjjjjjjjjjjjkjlkjlk jdj fk vkfjvf kfkjkjfkdekcjedkcjd cj djc djc kdjckjdekcjedkcvjdkevcjdkc KD cjkdj ck djcekjdckjedciedci dciu dci udci dic uidu ciedu ciu
Hjhjhwdjwhskxjkkkkkkkkkkkkkkkjjjjjjjjjjjjjjjjjjjjjjjj jjjjjjjjjjjjjjjj jjjjjjjjjjjjjjjjjjjjjjjkjlkjlk jdj fk vkfjvf kfkjkjfkdekcjedkcjd cj djc djc kdjckjdekcjedkcvjdkevcjdkc KD cjkdj ck djcekjdckjedciedci dciu dci udci dic uidu ciedu ciu
Hjhjhwdjwhskxjkkkkkkkkkkkkkkkjjjjjjjjjjjjjjjjjjjjjjjj jjjjjjjjjjjjjjjj jjjjjjjjjjjjjjjjjjjjjjjkjlkjlk jdj fk vkfjvf kfkjkjfkdekcjedkcjd cj djc djc kdjckjdekcjedkcvjdkevcjdkc KD cjkdj ck djcekjdckjedciedci dciu dci udci dic uidu ciedu ciu
Hjhjhwdjwhskxjkkkkkkkkkkkkkkkjjjjjjjjjjjjjjjjjjjjjjjj jjjjjjjjjjjjjjjj jjjjjjjjjjjjjjjjjjjjjjjkjlkjlk jdj fk vkfjvf kfkjkjfkdekcjedkcjd cj djc djc kdjckjdekcjedkcvjdkevcjdkc KD cjkdj ck djcekjdckjedciedci dciu dci udci dic uidu ciedu ciu
Hjhjhwdjwhskxjkkkkkkkkkkkkkkkjjjjjjjjjjjjjjjjjjjjjjjj jjjjjjjjjjjjjjjj jjjjjjjjjjjjjjjjjjjjjjjkjlkjlk jdj fk vkfjvf kfkjkjfkdekcjedkcjd cj djc djc kdjckjdekcjedkcvjdkevcjdkc KD cjkdj ck djcekjdckjedciedci dciu dci udci dic uidu ciedu ciu
Hjhjhwdjwhskxjkkkkkkkkkkkkkkkjjjjjjjjjjjjjjjjjjjjjjjj jjjjjjjjjjjjjjjj