Boshiamy (, sometimes written , a Mandarin approximation of the Taiwanese phrase (), meaning "It's nothing!") is a Chinese character input method editor (IME). It was invented by Liu Chung-tz'u (). Boshiamy uses about 300 radicals represented by 26 letters to build characters. Radicals are mapped to letters by their shapes, sounds or meanings. Boshiamy has become one of the fastest input methods by shortening codes of many characters. Speeds exceeding 200 characters per minute have been achieved in typing contests. Boshiamy was originally designed to input traditional Chinese characters, but now it also supports simplified Chinese character input. However, it is commercial software, and users may not be able to use it on some computers. A trial version with fewer characters is available on the official site. Categories of radicals The inventor of Boshiamy divided radicals into several categories as a mnemonic for learners to master radicals. All categories of radicals are treated equally in practice. Shapes Some radicals are mapped to letters with similar shapes. For example, some characters which entirely consists of these radicals are (O, A, O), (A, O, P), and (Y, Y, Y). Sounds Some radicals are mapped to letters by their sounds. For example, the character is represented as MBD, which respectively correspond to the radicals (mǐ), (bā), and (dāo). Also, some radicals are mapped to letters with English names similar to their pronunciations: (yī) is E, (èr) is R, and (xī) is C. Meanings Some radicals are mapped to the first letters of their English meanings. For example, (tree) is T, (car) is C, and (center) is C. Variants Some radicals look similar to other radicals, and are mapped to the same letter. For example, is similar to , and is represented by C. Others A few radicals are mapped to letters arbitrarily. For example, is U, is E, and is Y. Rules of character input Order Characters are decomposed into what users call "eye order" (), that is essentially from left to right, from top to bottom. Because of the numerous radicals available, decomposition is not difficult. For some characters the order differs from stroke order; for example the dot of is written last, but is taken first in the code because it is at the top. Supplementary letter The first three and the last radical of a character are taken as its code. If there are less than three letters, a