1. A numeric keypad for entering ideographic characters, the numeric keypad comprising: a first set of input keys corresponding to numerals 1, 2, 3, 4, and 5, each of the first set of input keys having a predefined single character stroke; and a second set of input keys corresponding to numeral 6, 7, 8, 9, and 0, wherein at least one of the second set of input keys is assigned a first particular sequence of the predefined single character strokes and a second particular sequence of the predefined single character strokes different from the first particular sequence of the predefined single character strokes.