While loop printing a line multiple times C [duplicate]

I'm creating a simple calculator for a class assignment in C but I'm running into an issue where when it's running the loop I get a certain line printing out twice. Basically I have an introduction portion (not included in the code below) that shows the user possible operations my calculator can do. I put the scan in a while loop because I want it to continuously prompt the user to select an operation after completing one unless they select 'E'. However when the user finishes the first operation, the "Select an operation:" prompt will be printed to the screen twice instead of once.

    while(select != 'E'){
    printf("\nSelect an operation: \n");
    scanf("%c", &select);
    
        if(select == 'E'){
            break;
        }
        else if(select == 'A'){
            printf("\nEnter first number: \n");
            scanf("%d", &num1);
            printf("\nEnter second number: \n");
            scanf("%d", &num2);
            
            answer = num1 + num2;
            printf("The result is: %d", answer);
            printf("\n");
        }
        else if(select == 'S'){
            printf("\nEnter first number: \n");
            scanf("%d", &num1);
            printf("\nEnter second number: \n");
            scanf("%d", &num2);
            
            answer = num1 - num2;
            printf("The result is: %d", answer);
            printf("\n");
        }
        else if(select == 'M'){
            printf("\nEnter first number: \n");
            scanf("%d", &num1);
            printf("\nEnter second number: \n");
            scanf("%d", &num2);
            
            answer = num1 * num2;
            printf("The result is: %d", answer);
            printf("\n");
        }
        else if(select == 'D'){
            printf("\nEnter first number: \n");
            scanf("%d", &num1);
            printf("\nEnter second number: \n");
            scanf("%d", &num2);
            
            answer = num1 / num2;
            printf("The result is: %d", answer);
            printf("\n");
        }
    }```