Press SPACE or THE GREEN FLAG to enter a letter. This program is "extended" because it supports more than the 26 letters of the English alphabet. It supports: AaBbCcDdEeFfGgHhIiJjKkLlMmNnOOPpQqRrSsTTUuVvWwXxYyZzÀàÁáÂâÃãÄäÅ寿ÇçÈèÉéÊêËëÌìÎîÏïÐðÑñÒòÓóÔôÕõÖöØøÙùÚúÜüÛûÝýŸÿÞþẞßĀāĂ㥹ĆćĈĉĊċČčĎďĐđĒēĔĕĖėĘęĚěĜĝĞğĠġĢģĤĥĦħĨĩĪīĬĭĮįİıIJijĴĵĶķĹĺĻļĽľĿŀŁłŃńŅņŇňŊŋŌōŎŏŐőŒœŔŕŖŗŘřŚśŜŝŞşŠšŢţŤťŦŧŨũŪūŬŭŮůŰűŲųŴŵŶŷŹźŻżŽžſ