not correct output when using fprintf with multiple lines

Something is wrong here.. I need to associate the number of students to each class.. Any suggestion?

fprintf('class %d: number of students %d\n',[1:5], [15 17 12 18 15])

class 1: number of students 2
class 3: number of students 4
class 5: number of students 15
class 17: number of students 12
class 18: number of students 15

% desired output
class 1: number of students 15
class 2: number of students 17
class 3: number of students 12
class 4: number of students 18
class 5: number of students 15

Answer 1

[Dyuman Joshi]

Arrange the values to make a 2xn vector.

fprintf('class %d: number of students %d\n',[1:5; 15 17 12 18 15])

class 1: number of students 15
class 2: number of students 17
class 3: number of students 12
class 4: number of students 18
class 5: number of students 15

The values are used in the order they are provided.

For a single input, values are used column-wise (Indexing and storing data in MATLAB is column based). For multiple inputs, each input is treated as a single input serially/sequentially.

[Sim]

genius :-)