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printf("Excellent!\n" );

break;

case 'B' :
case 'C' :
printf("Well done\n" );

break;

case 'D' :
printf("You passed\n" );
break;

case 'F' :
printf("Better try again\n" );

break;
default :

printf("Invalid grade\n" );
}

printf("Your grade is %c\n", grade );

return 0;
}

When the above code is compiled and executed, it produces the following result:

Well done

Your grade is B

Nested switch Statements
It is possible to have a switch as a part of the statement sequence of an outer switch. Even
if the case constants of the inner and outer switch contain common values, no conflicts will arise.

Syntax
The syntax for a nested switch statement is as follows:

switch(ch1) {
case 'A':

printf("This A is part of outer switch" );

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