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Array expression query

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How does the array related expression in printf works

#include <stdio.h>

int main(void) {
	// your code goes here
	int a[3][4] = {
	    1,2,3,4,5,6,7,8,9,10,11,12
	};
	
	printf("%u",*(*(a+0)+1));
	
	return 0;
}

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