#include void main() { int a; scanf("%d",&a); switch(a) { case 10: case 9: printf("(90~100)n");break; case 8:printf("(80~89)n");break; case 7:printf("(70~79)n");break; case 6:printf("(60~69)n");break; case 5: case 4: case 3: case 2: case 1: case 0:printf("(0~59)n");break; default: printf("ERRORn");break; } }