#https://hackit2014.marcansoft.com/hackit/2/check?password=%00%00%00%00%00%00%00%00%00%00%00%00%00%00%00%00%00%00%00%00%00%00%00%00
a='72979910710110095671041144810951959510188116101110115105111110'
b=[]
while a!='':
if(a[0]!='1'):
b.append(int(a[:2]))
a=a[2:]
else:
b.append(int(a[:3]))
a=a[3:]
p=''
for c in b:
p+=chr(c)
print p