#include <stdio.h>

int main(void) {

    float nota1 = 7.5;
    float nota2 = 9.0;
    float nota3 = 8.3;
    float nota4 = 8.6;

    float soma = nota1 + nota2 + nota3 + nota4;
    float media = soma / 4;

    puts("============");
    printf("Nota 1: %.1f\n", nota1);
    printf("Nota 2: %.1f\n", nota2);
    printf("Nota 3: %.1f\n", nota3);
    printf("Nota 4: %.1f\n", nota4);
    puts("------------");
    printf("Média : %.1f\n", media);
    puts("============");
    
    return 0;
}