code`block`FunctionDecl`FunctionDeclRec`ForStmt`ForStmtRec`DoStmt`DoStmtRec`WhileStmt`WhileStmtRec`IfStmt`IfStmtRec`SwitchStmt`SwitchStmtRec`countBlocks`countBlocksRec`countCondition`countVariable`countLiteral`IntegerLiteral`StringLiteral`IfStmt`ForStmt`WhileStmt`DoStmt`SwitchStmt`countLoop`VarDecl`DeclRefExpr`DeclStmt`countDecl`countPointer`writeFunction`CallExpr`BinaryOperator`UnaryOperator`CompoundAssignOperator`countOperand`ArraySubscriptE`RealFaultLocation
int main()`FunctionDecl,false;`1`0`0`0`0`0`0`0`0`0`0`0`1`0`0`0`0`0`0`0`0`0`0`0`0`0`0`0`0`0`0`0`0`0`0`0`0`0
    int a,b,c;`FunctionDecl,false;`1`0`0`0`0`0`0`0`0`0`0`0`1`0`0`0`0`0`0`0`0`0`0`0`0`3`0`1`4`0`0`0`0`0`0`0`0`0
    cin>>a>>b>>c;`FunctionDecl,false;`1`0`0`0`0`0`0`0`0`0`0`0`1`0`0`4`0`0`0`0`0`0`0`0`0`0`7`0`7`0`0`0`0`0`0`0`0`0
    cout<<a-b;`FunctionDecl,false;`1`0`0`0`0`0`0`0`0`0`0`0`1`0`0`2`0`0`0`0`0`0`0`0`0`0`3`0`3`0`0`0`1`0`0`1`0`1