/Shell/Bash/Find next greater number with same digits

Find next greater number with same digits

def findnext(ii):
    iis=list(map(int,str(ii)))
    for i in reversed(range(len(iis))):
        if i == 0: return ii
        if iis[i] > iis[i-1] :
            break        
    left,right=iis[:i],iis[i:]
    for k in reversed(range(len(right))):
        if right[k]>left[-1]:
           right[k],left[-1]=left[-1],right[k]
           break
    return int("".join(map(str,(left+sorted(right)))))

-1

Source: stackoverflow.com

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