怎么错了？

#include<stdio.h>
#include<stdlib.h>
int main(){
    int a[11];
    int i,h,z=0;
    for (i=1;i<=10;i++){
    scanf("%d",&a[i]);
    printh("%d",a[i]);
    scanf("%d",&h);
    for (i=1;i<=10;i++){
    if (a[i]+30>=h) z=z+1;}
    printf("%d",z);
   system("pause");
   return 0;
}