In K-Map, Gray codes are used as shown below (00,01,11,10). But why is the decimal equivalent of binary code written inside the box instead of the decimal equivalent of Gray code? (For e.g., First row, third column box should be written as 2, right? Since 011 is Gray code, its decimal value is 2). When we have 3 as min term, we add a 1 to First row third column instead of First row 4th column. Please clarify this.