An illustration of an abacus. It is a rectangular wooden frame with two horizontal bars on either side. The bars are arranged in a grid-like pattern, with each bar having a different color - blue, orange, red, and yellow. The blue bar is on the top left corner of the frame, while the orange bar is in the middle. The red bar is at the bottom right corner, with the yellow bar on the bottom left corner.
User mrslni uploaded the image
User mrslni uploaded the image
