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#include <stdio.h> int DDRA = 0; int DDRB = 0; int PORTA = 0; int PORTB = 0; int PA1 = 1; int PA2 = 2; int PA3 = 3; int PA4 = 4; int PA5 = 5; int PA6 = 6; int PA7 = 7; int PB1 = 1; int PB2 = 2; int PB3 = 3; int PB4 = 4; int PB5 = 5; int PB6 = 6; int PB7 = 7;