please help me solving this

We have 10 exams {E1, E2, E3, ..., E10} and the task is to assign a hall and a time slot for each exam. The set of available time slots is T = {t1, t2, t3, t4} and the set of available halls is {A, B, C,}. However, to provide correct assignments for the exams, we need to satisfy the following constraints: exam . The 1st exam should take place before the third exam The 10th occurs after the 9th and 4th exams. The 1st, 3rd, and 4th exams should take place in either Hall A or Hall C. The 7th, 8th, 9th, and 10th exams should be in either Hall A or Hall B. There are no two exams occur at the same place and time. Complete the formulation of this problem as a constraint satisfaction problem in terms of variables, domains, and constraints. Constraints should be expressed implicitly using mathematical or logical notation rather than with words