Main.cc: In function 'int main()':
Main.cc:6:8: error: unable to find character literal operator 'operator""and' with 'char' argument
if(a>='A'and a<='Z'){
^
Main.cc:6:15: error: expected ')' before 'a'
if(a>='A'and a<='Z'){
^
Main.cc:12:14: error: unable to find character literal operator 'operator""and' with 'char' argument
}else if(a>='a'and a<='z'){
^
Main.cc:12:21: error: expected ')' before 'a'
}else if(a>='a'and a<='z'){
^