Mine
public text v1 · immutablestring strName = "cAt";
for (int i = 0; i < strName.Lenght; i++){
if (strName[i].ToUpper() == strName[i]){
strName[i] = strName[i].ToLower();
else
strName[i] = strName[i].ToUpper();
}string strName = "cAt";
for (int i = 0; i < strName.Lenght; i++){
if (strName[i].ToUpper() == strName[i]){
strName[i] = strName[i].ToLower();
else
strName[i] = strName[i].ToUpper();
}