Scopes in nested block

/* 1401.c: Scopes in nested block */
#include <stdio.h>

main()
{
    int i = 32; /* block scope 1*/

    printf("Within the outer block: i=%d\n", i);

    { /* the beginning of the inner block */
    int i, j; /* block scope 2, int i hides the outer int i*/

    printf("Within the inner block:\n");
    for (i=0, j=10; i<=10; i++, j--)
    printf("i=%2d, j=%2d\n", i, j);
    } /* the end of the inner block */
    printf("Within the outer block: i=%d\n", i);
    return 0;
}