Number puzzle "Rosary"

Brain training puzzles. "Rosary" is an application for playing with Android, the number puzzle "JUZU" Mr. Kazuhisa Koyanagi was invented. Rules. 1. Connected by a line between the numbers round. 2. In round numbers lead wire only the number of digits. 3. Do not cross the line. How To Play. 1. You can draw a line by tapping the numbers, and drag it to the numbers around.