'''for i in range(1,100,50): #it means count from 1 to 100 and increase by 50
print(i)'''
def find_short(s):
li = list(s.split(" "))
sc=[]
for i in range(0,len(li)):
sc.append(len(li[i]))
return min(sc)
print(find_short("bitcoin take over the world maybe who knows perhaps"))