To represent a negative number as a literal, prepend a minus sign (-) to the literal, as in -45. If you need to use a literal integer with octal numbering, prepend a 0 to the number. For example, the octal number 777 would be the literal 0777. Hexadecimal integers are used as literals by prepending the number with 0x, as in 0x12 or 0xFF. NOTE. Octal and hexadecimal numbering systems are convenient for many advanced programming uses, but unlikely to be needed by beginners.
To skip a period: 1  When taking monophasic birth control pills:  28-day oral contraceptive (OC) pack users: When you reach the end of the active hormonal pills in a pack (the first 21 or 24 pills), begin the next set of active pills, skipping the inactive (placebo pills) from the previous package.
If you want to postpone your period, just start taking birth control pills (at least about 10 days before your period is due), and continue taking it until you want your period to start. The next period will start about 3-5 days after taking the last tablet.It's also possible to prepone the period. Start birth control pills from Day 1 of your cycle; take them for at least 10 - 15 days; and stop them about 3-5 days before you want your period to start.It's a good idea to use a regular dose birth control pills; or to take 2 tablets daily.Adjusting your cycle.f you want to postpone your period, just start taking birth control pills (at least about 10 days before your period is due), and continue taking it until you want your period to start. The next period will start about 3-5 days after taking the last tablet.