Main.cc: In function 'int main()': Main.cc:6:7: error: expected primary-expression before 'char' a=char((a+1-97)%26+97; ^ Main.cc:7:7: error: expected primary-expression before 'char' b=char((b+1-97)%26+97; ^ Main.cc:8:7: error: expected primary-expression before 'char' c=char((c+1-97)%26+97; ^ Main.cc:9:7: error: expected primary-expression before 'char' d=char((d+1-97)%26+97; ^