c - why array shows garbage value when only one format specifier used? -

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i trying print value of array in c-language.i using 3 format specifier 1 value of array , problem don't understand how other 2 values coming in output .

here code:

int arr[6] = {3,4,42,2,77,8};   printf("%d %d %d ",arr[2]);    output :   42 3 4

according c standard

if there insufficient arguments format, behavior undefined.

in call of printf

printf("%d %d %d ",arr[2]);

the arguments exhausted after first format specjfjer. function call has undefined behaviour , output can contain garbage.

you shall write 

printf( "%d ", arr[2] );

or example

printf( "%d %d %d ", arr[2], arr[3], arr[4] );

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