Main.cc:4:5: error: expected initializer before 'char'
char a;
^
Main.cc:5:5: error: 'cin' does not name a type
cin>>a;
^
Main.cc:6:2: error: expected unqualified-id before 'if'
if(int(a)>=65&&int(a)<=90){
^
Main.cc:10:1: error: expected declaration before '}' token
}
^