def uloha1(x):
    a=str(x)
    s=0
    for i in range(0,len(a)):
        s+=int(a[i])
    return s
    
def uloha4(a):
    b=a[:]
    i=b.find('(')
    j=b.find(')')
    if i<0 or j<0:
        print('nekorektne zatvorky')
    else:    
        while i<j and i>0 and j>0:
            print(b[i+1:j])
            i=b.find('(', j+1,len(b))
            j=b.find(')',j+2,len(b))  
            
def uloha6(a):
    p=0
    for i in range(0,len(a)):
        if a[i].isupper():
            p+=1
    return p  
    
def uloha7(a):
    b=a.lower()
    for i in 'aeyiou':
        c=b.replace(i,'')
        b=c[:]
    print(b)  
    
def uloha11():
    p=0
    for i in '0123':
        for j in '0123':
            for k in '0123':
                for l in '0123':
                    print(i,j,k,l)
                    p+=1
    print (p)                  
    
def uloha12():
    p=0
    for i in 'ahoj':
        for j in 'ahoj':
            for k in 'ahoj':
                for l in 'ahoj':
                    print(i,j,k,l)
                    p+=1
    print (p)   
      
def uloha16(a):
    if a.lower() in 'aeiouy':
        print ('je to samohlaska')
    if a.lower() in 'bcdfghjklmnpqrstvxzw':
        print ('je to spoluhlaska')
        
def uloha18(a,n):
    for i in range(len(a)):
        print(a[i]*n) 
        
def uloha20(a):
    for i in range(len(a)-1,-1,-1):
        print(a[i]*(i+1))