Calculator play

This is a calculator for numerical play that searches for patterns where the sum of 4 values ​​of 3 digits is 2220. To make it easier to find various patterns, you can display 4-value input values ​​and There is a function to rotate and rearrange the number buttons. example. ・Number of four corners: 111+333+777+999 = 2,220 ・Number of four sides: 123+369+987+741 = 2,220