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/* Demonstrates unary operator prefix and postfix modes */ 
 
#include  
 
int a, b; 
 
int main(void) 
{ 
    /* Set a and b both equal to 5 */ 
 
    a = b = 5; 
 
    /* Print them, decrementing each time. */ 
    /* Use prefix mode for b, postfix mode for a */ 
 
    printf("\nPost  Pre"); 
    printf("\n%d    %d", a--, --b); 
    printf("\n%d    %d", a--, --b); 
    printf("\n%d    %d", a--, --b); 
    printf("\n%d    %d", a--, --b); 
    printf("\n%d    %d\n", a--, --b); 
 
    return 0; 
}