0_0_5241467_8380.c:56: error: conflicting types for 'cal'
0_0_5241467_8380.c:4: error: previous declaration of 'cal' was here
0_0_5241467_8380.c:56: error: conflicting types for 'cal'
0_0_5241467_8380.c:4: error: previous declaration of 'cal' was here
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