Deok-su and his Debts

Jang Deok-su is down on his luck, having accumulated enormous debts with loan sharks. He needs to solve a problem so that he can repay his loan. Since you are his teammate, help him solve the problem for your own survival. In the problem is given a string containing, '$c$' or '+'. A Complete String is a non-empty string that consists of consecutive occurrences of "c++", any number of times. Fo