#include void main() { int a, b, c; printf("1つ目の値を入力:"); scanf("%d", &a); printf("2つ目の値を入力:"); scanf("%d", &b); printf("3つ目の値を入力:"); scanf("%d", &c); printf("%d + %d + %d = %d\n", a, b, c, a + b + c); }