kadai26.c:3: error: parse error before "a"
kadai26.c:3: warning: data definition has no type or storage class
kadai26.c:4: error: initializer element is not constant
kadai26.c:4: warning: data definition has no type or storage class
kadai26.c:5: error: initializer element is not constant
kadai26.c:5: warning: data definition has no type or storage class
kadai26.c:6: error: initializer element is not constant
kadai26.c:6: warning: data definition has no type or storage class
kadai26.c:7: error: parse error before '}' token
kadai26.c: In function `main':
kadai26.c:17: error: parse error at end of input

どこを改善したらよいか教えてください。