#include <stdio.h>
int main(void) {
// your code goes here
int i,max,a[20];
for(i=0;i<=19;i++)
{
}
max=a[0];
for(i=1;i<=19;i++)
{
if(a[i]>=max){
max=a[i];}
}
return 0;
}
I2luY2x1ZGUgPHN0ZGlvLmg+CgppbnQgbWFpbih2b2lkKSB7CgkvLyB5b3VyIGNvZGUgZ29lcyBoZXJlCiAgICBpbnQgaSxtYXgsYVsyMF07CiAgICBmb3IoaT0wO2k8PTE5O2krKykKICAgIHsgCiAgICAgcHJpbnRmKCLor7fovpPlhaXnrKwlZOS4quaVsOaNriIsaSsxKTsKICAgICBzY2FuZigiJWQiLCZhW2ldKTsKICAgIH0KICAgIG1heD1hWzBdOwogICAgZm9yKGk9MTtpPD0xOTtpKyspCiAgICB7CiAgICAgIGlmKGFbaV0+PW1heCl7CiAgICAgICAgbWF4PWFbaV07fQogICAgfQogICAgcHJpbnRmKCLmnIDlpKflgLzkuLolZCIsbWF4KTsKICAgIHByaW50ZigiXG4iKTsKCXJldHVybiAwOwp9Cg==