Question

Ninjas are trying to hack a system of a terrorist organization so that they can know where they will be going to attack next. But to hack the system and to get access to data they need a password that must satisfy certain conditions as described below: 1) Length of the password must be between 8 to 15 characters. 2) At least one digit (0-9), one lowercase letter (a-z), one uppercase letter (A-Z) and de special character (%, ^, &, #, *, %, etc) must be present. 3) Password must not contain any space. You are given a string 'STR', help ninjas to find whether it's a valid password or not. For example:

          Ninjas are trying to hack a system of a terrorist organization so that they can know where they will be going to attack next. But to hack the system and to get access to data they need a password that must satisfy certain conditions as described below: 1) Length of the password must be between 8 to 15 characters. 2) At least one digit (0-9), one lowercase letter (a-z), one uppercase letter (A-Z) and de special character (%, ^, &, #, *, %, etc) must be present. 3) Password must not contain any space. You are given a string 'STR', help ninjas to find whether it's a valid password or not. For example:

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