0_0_3955574_22942.c: In function `main':
0_0_3955574_22942.c:7: error: 'for' loop initial declaration used outside C99 mode
0_0_3955574_22942.c:18: error: 'for' loop initial declaration used outside C99 mode
0_0_3955574_22942.c:21: error: redefinition of 'k'
0_0_3955574_22942.c:18: error: previous definition of 'k' was here
0_0_3955574_22942.c:21: error: 'for' loop initial declaration used outside C99 mode
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