Consider the data type `Angajat`, defined as follows: ``` struct Angajat { char nume[40]; char dept[20]; int salariu; }; ``` where `nume` is the employee name, `dept` is the department code (a single word of at most 15 characters), and `salariu` is the monthly salary. Read from standard input a natural number `n`, followed by the data for `n` employees. For each distinct department, print the total sum of salaries of employees in that department. Departments are printed in the order of their first appearance in the input, one per line, in the format `dept suma`.