int, err := strconv.Atoi(string)
int64, err := strconv.ParseInt(string, 10, 64)
string := strconv.Itoa(int)
string := strconv.FormatInt(int64,15)
int, err := strconv.Atoi(string)
int64, err := strconv.ParseInt(string, 10, 64)
string := strconv.Itoa(int)
string := strconv.FormatInt(int64,15)