An input display device includes: a processor to execute a program; and a memory to store the program which, when executed by the processor, results in performance of steps including: receiving an input of a track by a receiving unit; generating a track image showing the track; acquiring a character string; and displaying the character string acquired in the acquiring to be superimposed on the track image. When the character string is acquired in the acquiring before the track image is generated, the displaying the character string is stood by.