stair made colourful books graduation hat the final step black chalk board with math formulas background

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$A stair is made of colourful books. A graduation hat is on the final step. Black chalk board with math formulas on the background. Royalty Free Stock Photo$

$A stair is made of colourful books. A graduation hat is on the final step. Black chalk board with math formulas on the background.$

A stair is made of colourful books. A graduation hat is on the final step. Black chalk board with math formulas on the background. Wooden floor.